I've been watching a lot of boxing anime lately, and decided to start watching old footage. I have a relative named after Jack Dempsey, and I gotta say that the Dempsey roll is a hilariously aggressive technique. Literally forcing yourself to repeatedly almost stumble by punching hard af is pure dudes rock energy.
Dustin and Max have really good boxing for MMA but I'd say Petr Yan is the best boxer in the UFC by a mile. His fundamentals are flawless and manages to outbox his opponents while usually having the shorter reach.
1000% Yan is on another level for pure boxing in MMA