The Carabao Cup has 92 teams competing for the trophy, while the Champions League only has 32, meaning there is less competition.
23 teams have won the Carabao Cup. Only 13 teams have won the UCL so it's definitely a farmers trophy.
The Carabao Cup has a title sponsor while nobody wants to sponsor the name of that tinpot European trophy.
You need to win 8+ knockout matches to win the Carabao Cup, but you need to win only 3 ties and 1 final to win UCL. The UCL is much easier and requires luck rather than consistency and talent.
UCL is going to be abolished soon because of the introduction of European Super League, while the Carabao Cup will continue for all eternity, thus proving that the Carabao Cup is clear.
Corruption is synonymous with the UCL. Every horrible refereeing decision in history was in the UCL. You see clubs being associated with UEFA, like Uefalona and Uefadrid. The Carabao Cup is completely neutral.
The likes of Real Madrid, Barcelona, Bayern Munich, Juventus, Inter and AC Milan have never have qualified for this prestigious cup competition, thus proving its difficulty.