@Toshiya:
wtf I played Diddy Kong, Falco, Sonic, Wolf and Peach 
Ah okay! Gotcha. Crossed some wrong wires, is all. Haha.
First, the cliche phrase: Really, you should find yourself practicing with all of your favorite characters (or the entire roster, if you want to be well rounded).
Specifically, I believe your Diddy Kong and Wolf are quite above average. May I recommend a bit more banana play from Diddy? At this point, just work on your combos a bit more and you'll have MONSTERS of characters to play against. ;D
Your Falco and Sonic feel only slightly above average, the latter moreso. As for Falco, you shouldn't neglect his BAIR. It's still considered one of the strongest in the game (like in Melee) and should, in my opinion, be abused. lol… Since I haven't fully analyzed Sonic, as a character, I can only give a little advice regarding yours: FAIR a bit more. I hope I can play him soon so I can further study your style. Otherwise, work on combos (you'll probably hear me say this to everyone LOL).
I only saw your Peach once, I believe. Not enough time to tell more than this: Low floating is a MUST! Don't forget to use your FAIR and BAIR along with that for mindgames.
Truly some good matches we've had. Looking forward to even more. 