What works against Poatan for me in these GOAT convos is the fact that he hasn’t had to do much to get these title shots. Yes, it’s still impressive that he’s beaten the guys he has.
But Chuck Liddell had a 10 fight win streak that included beating Monson, Randleman, Guy Mezger, Bustamante, Vitor Belfort, and Babalu before he got his first LHW TS.
Poatan just had to beat an old Jan Blachowicz to get his shot, because of his being a former MW champ, which he once again didn’t have to do much to get that TS because of his history with Izzy.
Then you’ve gotta decide how to factor in things like PRIDE not making every fight a title defense. Shogun, for example: was on a 4 fight win streak before entering the 2005 GP, where he beat Rampage, Little Nog, Overeem, and Arona to win his title. He then won his next 4 fights (Diabate, Randleman, Nakamura, and Overeem again) but none of those are technically title defenses.
Poatan’s title defense stats are good, but his overall LHW resume is just not nearly as deep as others.