Snake still has one of the best neutral games with his explosives and now Nikita is buffed. You could say that his Down Smash was nerfed but depending on who you ask the mines were kind of useless. If you were any good at Brawl you could just run up and power shield the mines. I'd say Snake bnb is up there. Not sure if he's top tier but he's good.Based on demo footage, I'm psyched about Link in this game: https://www.youtube.com/watch?v=2g2O5NC0aDU&feature=youtu.be
As early as it is for definitive competitive predictions, if I had to take a whack at a top 12 for Ultimate, it'd be something like
Ryu, Link, Marth, Pikachu, Pokemon Trainer, Sheik...
and less confidently: C. Falcon, Roy (the engine changes are going to benefit him like mad), Ike, Inkling, Cloud and Diddy Kong