If I were to request or suggest anything for not-so-useful moves after a stable release...
-Give Captain Falcon his N64 Falcon Punch back! It actually supported some horizontal recovery and came out pretty quick.
This
-Out of curiosity, does Ganondorf have a good move whose trajectory angles downward? I think doing this with UTilt would be cool. Samus' can hit them straight up and Falcon's hits them diagonally away. Or would that be overkill giving Ganondorf yet another strong move to hit opponents off stage? Maybe you could flat-out change the animation and make it actually serve the purpose of a UTilt (anti-air, good coverage, usually a combo move).
Give Ganon his New up smash as his new u-tilt :D
-I have no idea for Sing besides better startup, more range, and more effectiveness although Jiggs already has a great ability to set up Rest. I would say give her a recovery move, but that's not even necessary either...
I've got nothing here
-Didn't Yoshi's nB in 64 actually keep people stuck for quite a while? It's a total joke in Brawl and, I think, even in Melee.
Its a setup for combos, not a kill move
-Did Brawl+ improve the use of Ness' PK Flash? I remember RC1 being absurd and then being changed in 6.0 (but still fine). In an even faster environment, will this still have some use?
PK Edgeguard?
-G&W's Bucket seems too situational, but at the same time you can't make it be able to absorb most projectiles. It just needs better use though. Ness and Lucas' PSI Magnet share the same use, but I'm not sure if they actually get some good use in the right fights.
Be smart with it and combo in to it?
-Pardon my partial lack of knowledge on D3, but does nB have much use?
This?
http://www.youtube.com/watch?v=9yfMoegHvcY