^ I think Diddy is a better character than most of the top 4 you have there. He's potentially top 2 or maybe even the best in the game IMO. Monkey Flip is an absurd move, lol.
I don't really understand the resistance here to Diddy as a top tier character. I believe he's already winning tournaments and his options are all super good. I guess he's a little easier to gimp than he was in Brawl... maybe. Otherwise I can't figure out what everyone thinks his problems are exactly.
All of the "top tiers" in this game have weaknesses that are pretty exploitable. For example Rosalina is great but she's slow and a lot of her better options rely on Luma being available. ZSS is amazing, and very hard to pin down but might have issues sealing the deal vs. some more elusive characters like Sheik or some characters like Lucario. Diddy Kong tbh has fewer weaknesses than ZSS or Rosalina and probably good matchups vs both of them.
Top characters atm IMO:




I don't know what the order is but all of these characters seem really good. I'm a little on the fence about Wario, he's incredible but the grab releases give him bad match-ups vs. ZSS and Sheik once Wii U is out and people can grab release->dacus him.
I'm still not totally convinced about some others people have mentioned like
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and
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. I think people are sleeping a little (or a lot) on
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and

and possibly even

.

is much better than she was in Brawl too, if only because she can kill you now. She might actually deserve that #19 tier position now!