Peach:
Was a starter in Melee and Brawl. Guarantee to keep her position.
100%
Starfy:
There are more to Starfy then just a star. As others have mentioned, he has the potential to be an incredibly unique player with the way he plays. After the way Sakurai treated him as an Assist Trophy, he should make that up by giving up a playable position. He is Deserving.
The question is will Sakurai put Starfy in the game. That remains to be seen, but I will agree that Starfy has a good shot of being in SSB4. His latest games, despite being the worst selling in Japan, went oversea and met with success with half a million in North America so far. That means that Starfy is relevant to the gaming world. It is also a successful franchise in Japan as well, not to mention one with high quality. It also helps that he is an Assist Trophy, thought not as much as other Assist Trophies with moves, but it still is enough to push him into the likely territory.
The main problem that could keep Starfy off of SSB4 has also to do with his Assist Trophy status. The way he was treated Starfy was very insulting, being the only one that you could damage and KO, which makes Starfy practically useless. It also doesn't help that in the DOJO, Starfy was called a weakling, which could show that Sakurai has no idea of his fighting potentials and as such, could easily overlook him. He's also not really that popular for requests, which hurts him even more.
Hopefully, with him having a large move set potentials, relevant, popular, and important to Nintendo's gaming industry in Japan, Starfy can overcome Sakurai's biasness and become playable.
75%
Nominations (Newcomers) (I have ten nominations here due to being the closest to predicting Professor Layton's overall score, forgot to announce that):
Ray (Custom Robo) (x1)
Victini (x1)
Saki Amamiya (x1)
Medusa (x1)
Takamaru (x1)
Paper Mario (x1)
Isaac (x1)
Krystal (x1)
Ryu Hayabusa (x1)
Bowsre Jr. (x1)
Nominations (Veterans):
Pikachu (x5)
For Ness, I predict 91.27%. For Mega Man, I predict 71.22%