As of now, this is my top 5.
5p Mega Man (tried maining him in Smash Bros Wii U, but I stopped playing as him over time. Will give him another chance.)
4p Mewtwo (I like playing as him as well as Samus)
3p Inkling (Looks like a lot of fun to play)
2p Samus (My secondary main)
1p Kirby (My primary main and that will never change. :) I like the return of his fireball running attack)