Fuck it. Thread of my opinions on EVERY. SINGLE. GUNDAM.
(except from MSV stuff, and only from shows I've watched unless they're notorious enough that I know them without having watched their show)

RX-78-2
An absolute classic. It's not the best thing I've ever laid eyes on, but it's still a good, solid design and there's a reason it gets revamped every two years. The G40 is also really good.

Gundam MK II
An absolute banger. It's simple, but you can tell at a glance that this is the OG made more powerful. I like the Titans color scheme more, but both are good.

Zeta Gundam
Again, it's one hell of a great design. I love how different it looks from almost every Gundam in the franchise, from its mouthplate, to its v-fin, to the way it transforms. Zeta designs really fuck, and this one is no exception.

Psyco Gundam
I'm a sucker for Gundams with enemy aesthetics, and the Psyco was the first one of these. The fact that it dwarfs almost every other MS in the franchise helps a lot.

ZZ Gundam
Not as much of a fan of this one, mainly because it feels like it was made for a Super Robot series, but it's still a good design and its transformation fucks.

Nu Gundam
It should be illegal to fuck as much as Nu does. Everything from the black and white contrast, to the Funnels on the back, it all comes together and has more sex than anything has ever had.

Gundam NT-1 "Alex"
This thing's pretty great, but it's kind of… Too normal, if that makes sense. Still a great design, but nothing much to write home about. Love the armored version though.

Gundam F-91
An absolute banger. I love this. The way it looks like a car? Amazing.

Gundam GP01 "Zephyranthes"
It's ok. Not really interesting, but it's ok.

Gundam GP02 "Physalis"
It's good, mainly because of how ridiculously bulky it is, but I kinda don't like that it looks evil even before Zeon stole it. It really doesn't look like it was built along GP01.

Victory Gundam
It's pretty good. Still not much to talk about.

V2 Gundam
I really like it, especially the big yellow V. Makes it feel incredibly distinct.

Gundam Ground Type
A solid design. It's not made to be aesthetically pleasing, and I like that about it.

Gundam Ez-8
I love that it looks as far away from a Gundam as it can. Like, no V-fin, no wild colors, the thing looks like a damn grunt suit, and I love it.

G-Saviour
It's… I mean the design itself is... Alright? I don't... I don't hate the way the it looks? It's just... Hoo boy.

Gundam Unicorn
The Unicorn has a very sleek, sophisticated design, and then Destroy Mode just says "fuck you" and makes it kind of ugly. I like Destroy Mode's head, but aside from that it's a pass.

Gundam Banshee
Banshee is pretty much the same, but I like its Destroy Mode a bit more because the combination of black and gold really works well. Really dislike the Banshee Norn though.

Full Armor Gundam (Thunderbolt version)
The MSV design was already pretty good, but the Thunderbolt version is so damn good.

Gundam Atlas
It's so weird and lanky that I can't help not love it. The colors are also really nice.

Narrative Gundam (Normal, A Packs, B Packs, and C Packs)
They're all pretty good. I'd say C Packs is my favorite of the bunch, but the normal one is neat too.

Gundam Phenex
It's… It's just Unicorn again, but with a different color scheme. I like its blue psychoframe, but aside from that there's nothing much to it aside from it looking like the chicken it wants to be.

Gundam Penelope (& Odysseus)
I love big, dumb Mobile Suits but this big bird isn't my thing. Odysseus is a neat design, but the idea of it being strapped with so much shit makes me dislike it.

Xi Gundam
It's pretty good. It's bulky, but not in the way that Penelope is, so I appreciate it.

Just a heads up, I'm about to do the entire G section. I'll cut my thoughts short so I can cover as many of them as possible in a short time. Just, uh... Gimme a minute.

Arachno Gundam
Looks fine
Ashura Gundam
Eh?
Bolt Gundam
I like it
Cobra Gundam
Unironically neat

Devil Gundam
An absolute chad
Dragon Gundam
One of G's best designs
God Gundam
Shining but ten times better
Jester Gundam
Lives in a society

John Bull Gundam
The best thing to come out of england
Kowloon Gundam
Unironically sick ass
Lumber Gundam
The only canadian I actually like
Magnat Gundam
Actually pretty neat

Mandala Gundam
Lanky and fun
Master Gundam
Gigachad
Matador Gundam
My kind of stupid
Mermaid Gundam
Looks stupid, is actually pretty cool

Maxter Gundam
Footballer form is really the better one, the other is pretty neat but eh.
Minaret Gundam
Unironically a sick ass design
Neros Gundam
Very punchable

Nether Gundam
See Matador
Nobel Gundam
Absolutely ruined because of @MgSazabi
Pharaoh Gundam IV
it's ok
Rose Gundam
Love this thing so much, and I'm not even joking

Shining Gundam
A banger
Skull Gundam
Pretty bad
Spiegel Gundam
Looks amazing
Temjin Gundam
It's fine

Tequila Gundam
It's a big meme but I think it unironically looks pretty good
Viking Gundam
Really good
Zebra Gundam
Unironically a cool design
Zeus Gundam
Too much yellow but otherwise it's fine

Well, G's done with, so onto Wing.

Wing Gundam & Wing Gundam Zero
The OG Wing is fine. It's not great, but it's not bad, and I like it enough. Zero is… really just meh.

Gundam Deathscythe & Deathscythe Hell
The first is good already, but Hell is just so ridiculously edgy that I can't bring myself to say bad things about it.

Gundam Heavyarms (& Heavyarms Custom EW)
OG Heavyarms is a neat MS, but I'm not a fan of its color scheme. The Endless Waltz version of the Heavyarms Custom fixes that problem and turns it into a genuine banger.

Gundam Sandrock
It's pretty neat. Not very special, but it never really tried to be, and I can respect that.

Gundam Shenlong & Gundam Altron
Shenlong is pretty bad in my opinion, but Altron is a really good design.

Gundam Epyon
It's… it's ok. Not a fan of the color scheme but aside from that the design itself is neat.

Wing is done, now onto X (or at least what I've seen from it)

Gundam X & Gundam X Divider
The X itself is fine, but the Divider is pretty good. They're both solid anyway. (Disregard the different color schemes, the only pic X I could find was of Unit 3)

Gundam Double X
I'm running out of words to describe things that look good, but in short, the Double X has sex.

Gundam Airmaster
It's a transformer, but it's a good one. I honestly prefer calling it Angry Zeta.

Gundam Leopold
At first this just looks like a Green Heavyarms, but really, this design is really neat and it's pretty different from Heavyarms, which I like a lot.

Gundam Ashtaron & Gundam Virsago
Ashtaron is a bulky boy and I love him for it. As for Virsago, he's just a mix of Master and Epyon, but he looks fine. Love his chest mouth though.

Now, Turn A only has one Gundam, so here goes:
Turn A Gundam
Absolutely fucking Majestic. One of Syd Mead's finest works. Love this thing.

I will not talk about any of the Gundams in Seed or anything in its continuity, because I hate Seed and everything it has done. Moving on to 00.

Gundam Exia
It's a pretty basic design, but I still like it a lot.

Gundam Dynames
Now, this, this is how the MS of a man that fucks looks. It doesn't fuck by itself, but you can tell at a glance that the man piloting it fucks enough to make up for it.

Gundam Kyrios
It's… I'm not a fan. It's ok, but I don't like it much.

Gundam Virtue & Gundam Nadleeh
Virtue is a big fat bastard and I love him, but under all the big chonk is a beautiful thing that I love with all my heart. I've already talked about Nadleeh enough that I don't feel the need to reiterate.

00 Gundam
It's a bit weird, but I like it as much as Exia. The backpack with the Twin Drives is really what makes me like it most.

Gundam Cherudim
Now, I know it doesn't look as good as Dynames, but listen, I think it looks just fine and people have been acting like it was the worst thing ever, and I won't stand for that. In this house we love and appreciate Cherudim.

Gundam Arios
Did somebody say "Kyrios but good"? Because that's exactly it. Arios is pretty great design.

Gundam Seravee & Gundam Seraphim
Seravee is Virtue but even better, while Seraphim is… My adopted son. I love him.

Gundam 00 Quan[t]
It's… It's ok. It's not bad, but it's not really great either. Do like the big Swords on the shoulder though.

Gundam Zabanya
The design itself is pretty good but I don't understand why they decided to put those things on his ass.

Gundam Harute
Continuing the line of Allelujah's MS just being better and better, this thing is dumb and I love it.

Gundam Raphael
… It… It tried?

Gundam Throne Eins, Gundam Throne Zwei, and Gundam Throne Drei
They're enemy Gundams, so of course they're gonna look weird, but in short; I like Eins, Zwei is ok, and Drei is bad.

Gundam Arche
This thing is a testament to the fact that Ali should not have lived this fucking long.

Reborns Gundam
I love that it's both a Gundam and a Guncannon, and the Gundam side actually looks good, so that helps.

Gundam Astraea type F
It's just Exia but red. Yeah, there's some differences, but it's just Exia but red.

0 Gundam
It's a revamp of the RX-78-2, but it's a good one.

Well, that's done, now onto AGE.
I am regretting making this thread.

Gundam AGE-1 Normal, Titus, Spallow, & Full Glansa
The AGE-1 Normal is yet another revamped RX-78-2, but it's fine. The Titus is good, the Spallow is underwhelming, and the Full Glansa is damn great.

Gundam AGE-2 Normal, Double Bullet, & Dark Hound
The AGE-2 is pretty good, the Double Bullet is just the AGE-2 but kinda worse, and the Dark Hound appeals to the ten year old Inside me.

Gundam AGE-3 Normal, Fortress, & Orbital
The AGE-3 is alright, the Fortress is good, and the Orbital is the best variation on it. Too bad none of them had any screen time.

Gundam AGE-FX
No.

Gundam Legilis
Absolutely love this. This is by far the best Enemy Gundam, not just because it looks great, but because it includes the Vagan design philosophy really well.

Alright, I'm not gonna do the Build series, mainly because I want to keep my goddamn sanity, but we're gonna look at the G-Self from Reconguista in G before moving on to Iron-Blooded Orphans.

Gundam G-Self
It's good but it reminds me of a Net Navi from the Mega Man Battle Network series. This isn't a bad thing, I just wanted to point that out because it feels weird.

Alright, just need to go through the IBO stuff, and we're done.

Gundam Barbatos, Barbatos Lupus, and Barbatos Lupus Rex
Each subsequent version of this thing fucks more than the previous. Barbatos is already really good, Lupus adds beast aesthetics, and Rex just makes the beast aspects even better. They're all bangers.