Godlike:
Sephiroth (FF7) vs Yunalesca (FFX) - Yunalesca. Damn that healing and regen abilities. Durable as all hell.
Piastol (SoA) vs False Althena (Lunar:EBC) - Piastol. Faster, does more damage, tanks magic!
Violetta (G3) vs Lavos (CT) - Lavos. Definite respect for Violetta, however...she's got to deal with the arms from the first part of the fight, then the final core section probably just does her in on sheer annoyance, possibly killing the scythe too. Close fight, though.
Lloyd (LoD) vs Persphone (WA5) - Persephone. Lloyd sucks and is no Godlike.
Heavy:
Vigoro (SoA) vs Zerase (S5) - Vigoro. Overkill'd.
Leopold (DQ8) vs Lang (LoL2) - Lang. Leopold's defense is numerically below average, and he's slower. A healing/regen set-up probably can take this.
Nina (BoF4) vs Gades (Lufias) - Gades. Yay HP-1+Poison.
Maya Schroedinger (WA3) vs Tidus (FFX) - Maya, I think.
Middle:
Margulis (XSs) vs Yangus (DQ8) - Margulis. Pretty straightforward.
Yuki (G3) vs Haschel (LoD) - Yuki. LoD magic is evadable. FLASH GRANTS EVASION TO MAGIC AND PHYSICALS, IF THEY ARE EVADABLE. So yes, goodbye Haschel.
Vivi Ordiner (FF9) vs Beowulf Kamdus (FFT) - I let FF9 block status with crystal skills. Sadly, I don't think there's a way he stops them all. Fuck FFT.
Alice Elliot (SH1) vs Eileen (S1) - ...Eileen.
Light:
Tempest (Lunar:SSSC) vs Taya (SF2) - Taya.
Imoen (BGs) vs Jewel (S4) - Imoen.
Hawkeye (FE7) vs Zhuzhen Liu (SH1) - Zhuzhen, I think. It's...remarkably sadly close.
Noel Chandler (SO2) vs Peco (BoF3) - Noel.