Godlike
Elc (AtLC) vs Ness (EB): Invincible, MP buster should be just enough to win this? For the record, I fucking hate MP Buster cause its one of those Mother Clair moves (yes, invincible doesn't bother me cause Elc gets that naturally! Only character I don't mind invincible whoring from <_<)
Deis (BoFs) vs Asgard (WA3): Been said.
Zenon (Disgaea 2) vs Brahms (VPs): Kneejerk.
Gilgamesh (FF5) vs Rolf Landale (PS2): Rolf nukes Gilgamesh, then he gets his 3 final attacks, which...should be enough to beat Rolf?
Heavy
Geshp (SF2) vs Yuffie Kisaragi (FF7): Geshp had a decent physical, in addition to Ice (which Yuffie immunes), right? Should be enough.
Menardi (GS) vs Maxim (Lufia 2): Immunes Death Sieze's ID, and Menardi working around a Limit Fighter doesn't largely work.
Dryst (Brig) vs Berserk (WA1): Uh, yeah, ACF Form rips Dryst in half.
Cecil Harvey (FF4) vs Fenril (OB): Speed difference and Holy resist really hit Cecil hard here.
Middle
Poco (AtLC) vs Peppita Rosetti (SO3): MP Busting Argument works for me.
Red Wizard (FF1) vs Lexis Shaia (Lufia 2): Red Wizard can do damage, Lexis cannot. Again, taking DoS form where Red Wizard gets Lightbringer, etc.
Zidane Tribal (FF9) vs Kimahri Ronso (FFX): Doom. Kim's damage sucks too much and he isn't getting an Overdrive through Ally fast enough.
Feraligatr (PKMN) vs Jill Fizzart (FE9): Laguz Guard destroys Fera. Even without that, though, Fera's just not impressive, as has been said.
Light
Imoen (BGs) vs Chelsea Torn (ToD): Imoen beats the crap out of the failure Tales Archer.
Olan Durai (FFT) vs Suo (VP1): Yeah, Elfboy's analysis works for me.
Sue (G1) vs Guile (CC): For the record, I think Guile's damage ends up better than you'd expect given how not all CC PCs have Damage techs to work with (Riddel comes to mind)...not that it matters admittedly, just saying!
Tai Ho (Suikos) vs Chat (ToE): I think?
Also, regarding Zidane's status and such...
I wanna say that one option Zidane has, though not necessarily for this fight, is putting enemy to sleep then spamming Thievery since I think that counts as Nontyped damage, thus doesn't wake the enemy up? Granted, how much you respect thievery varies! Should replay FF9 and try to get something that looks feasible for Thievery (saying "its completely awful!" just strikes me as wrong since you should be stealing from bosses on a regular basis, at very least, given how much awesome stuff they give. ADMITTEDLY, this doesn't necessarily mean it will surpass Zidane's physical end game damage), and test this, etc...and I could be making up the Sleep aspect.
Petrify...I honestly can't remember if FF9 really was "AP based on formation" or "AP based on enemy." FF7 and FF8 did the latter, after all. Enemy Mechanics Guide probably explains things well enough, probably the former given just how it works.