Feitan’s obviously gonna have better feats since he’s the only one who got to fight a worthy opponent. Phinks’s only fight was against a CA officer that couldn’t even make Phinks break a single sweat, so we haven’t seen what Phinks is like in a serious fight. At the end of the day, Togashi constantly pairs Feitan and Phinks together like they’re Bert and Ernie, even in the PT flashback they were a pair. They’re obviously supposed to be relative, and Phinks’s Hatsu has the matchup advantage.