Well each one is better in its own way, 64 was the first time a fighting game was like this, Melee was competitive, Brawl have and epic adventure mode and music, and SSB4 is just THE EPIC SMASH it has awesome roster, good music, is competitive(not at the same level of melee but is better than brawl) and the visuals are nice. Sakurai will have to do new tricks with SSB5 to top this one.