I liked it better when Ralf and Clark weren't beefcakes - wasn't aware of KoF until recently, but looking at past games and art. They used to be muscular, but not body builder muscular. This Ralf looks cool and well-built.
And then he took steroids... Well, at least Leona still looks badass as usual.
Ike in Smash 4 kind of bothers me since he does look stronger, but I think they took it a bit too far. Radiant Dawn had him look strong while Smash 4 kind of pushes him a bit stronger. This just might be a thing where concept art looks better than in-game models. At least it's not Soul Calibur bad where Mitsurugi looked absolutely badass for Soul Calibur V's concept art, but looked horrible in game.