out of the villains: muscular for sure (even if mac joined post kamino but before overhaul arc). hanabata is also on their ick list, as well as skeptic. lady nagant is on it too. but afo! mac hates afo!!

heroes: being biased towards dabi, endeavor is a given but they aren't vocal on it. star and stripe is fair game since they are american ("this is Captain America erasure. he is AMERICA'S ASS!"). hawks is on thin ice due to their trust issues (and stealing all the kfc, which is another gripe they have).

can't really say anything about the students other than they think ua using kids in the war(s) is scummy. they feel awful about dabi's siblings too, especially shoto. he's just a baby.