As a man who is sick of Guilty Gear being left out of these lists, I guess I'll just have to pick Mortal Kombat. I'm better at MK than at Guilty Gear anyway, but Mortal Kombat hasn't given me my all time favourite game soundtracks. Speaking of, when the hell are the soundtracks for Judgment (sic) and Dust Strikers getting released, dammit?
This is true... although I'm not very good at these; I can get an Extreme Fatality (10 stages; the highest is 11, and if you use cheat codes you can go higher but the rewards stop at 10) but it's the same every time.
And which other fighting game lets you create and play as a Red Mage, hmmm?
P.S. Protip: When I read this thread title, I was thinking it was gonna be a game about the Ultimate Fighting Championship.