Did Space Invaders Extreme come close to best DS Port or Remake? That was my game of the year for DS.
I think it was too much of a change (like a sequel) for it to be considered port/remake.
Who cares? There's a lot of variety there.
If it's just a quality thing, SSBBrawl doesn't have the best sound quality either. It sounds like the music tracks were heavily compressed, like they are MP3 files or something. There are also spurts of static whenever there are too many sound effects going on.
It's not a quality thing. You're right, SSBB tracks are quite compressed. But the fact is that SSBB had an unmatched number of big-name composers creating outstanding arrangements, and there were a ton of tracks covering all sorts of Nintendo classics.
Personally, I'm sad that Castlevania: Order of Ecclesia didn't make the DS sound category (it was third). The compositions are awesome, blending original ideas with shades of nostalgia that really stick in your head like the NES games... and there was even voice acting. Unfortunately, Konami really botched the instrument quality.