I only skimmed the thread, so I promise to go back and read the "counter-counter arguments" in detail. Mitsuda v. Uematsu is a debate close to my heart.

The bombastic themes of Uematsu versus the quiet sentimentalism of Mitsuda is really a difference in games, and it's hard now to divorce the music of one from the other. That being said, it's hard to really judge who is better; they both make very different musical tracks.

So, as a purely personal opinion: Mitsuda, because I like his celtic leanings and wide repretoire of sounds. Sara's Theme from Chrono Trigger is one of the most unique musical tracks in a game... or at least, was. Uematsu is first-rate, but very much a standard Romantic.

But, in terms of who I'd sleep with more, it's Uematsu. Mitsuda looks like a scary witch.
(SPOILER)