I think the Physical/Special split was one of the things they definitely did right, and was a long time coming. There was no conceivable reason for Thunderpunch and Thunder Fang to be considered Special attacks just because they were Electric-typed. By making them Physical, suddenly Hitmonchan can actually use its own goddamn signature moves, not to mention Gyarados, whose massive Attack stat was wasted because all Water moves were Special while Gyarado's Sp.Atk was in the negatives. Oh, and before the Physical/Special split, Ghost moves were all considered Physical... Insert *my mind is full of f:censored:ck* pic here.
Basically, a whole mess of monsters became useful in battle because of it.