No feedback yet? Strange. Oh well, I'll give my input.
Firstly, let me confirm that you weren't lying when you said the moveset was much more fun now: because it is. Very fun. Scott Pilgrim fun. By that, I mean the moveset is very energized, giving me the same rush that the movie and game did (yeah, I haven't read the original novel yet, but I'm getting there...)
However, the rush is killed for me a couple times by Scott's running animation. I know Do0m made that for ya and all, but it's just too slow. Remember the game, in which Scott was moving his feet extremely fast, as were his legs? The animation for this is too slow for the speed you're making him go, run speed and idle stance wise; if I were you, I'd either speed it up, or use the old run. (Sorry Do0m, I love ya, but that's just my opinion.

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Another thing that sort of got me is the down air. If the enemy is airborne, Scott bounces off their head, which I think is a neat concept. However, that doesn't seem to happen when the enemy is on the ground. Why is that? I think it would be cooler, and maybe a bit more balanced, I'f you had the head bonk.
Also, I like the idea of the Up B, having the two different move options. But I think it would be even cooler if they weren't ripped off of Mario and Link. Honestly, judging by your Cloud moveset, you certainly have the creativity to make your own moves. Yeah, I know, Mario and Link are referencenced very often in Scott Pilgrim, but giving him their exact moves? I expected something a bit more unique, like, say, a Megaman X-styled sword uppercut. Yeah, still ripping off a game series, but nothing in normal Brawl.
Well, that's my two cents anyways. Again, this is coming from someone with no PSA experience whatsoever, so you can pretty much not take anything I said seriously: just food for thought, and you wanted feedback. I'm very much enjoying it, and this won't be leaving Lucas's folder any time soon.