I’ve started watching the Amazing Race from season one (2001)- I’ll be updating anyone that cares on how nice fraternity/sorority people are:
Season 1:
DUs were mean to each other (playfully?) but nice to everyone else 7/10.
Alpha Chi was not nice (even to her mom) 2/10.

Season Two:
There was one KKG- she flew under the radar and we barely saw her- but her team made it to the finals - least problematic person in the finals. 8/10.