Godlike
Chris Lightfellow (S3) vs. Dehuai (SH): Kneejerk says all that big power mumbo jumbo would put him ahead of True Water Rune but...honestly not completely pleased whichever way I do vote.
Melfice (G2) vs. Kurando Inugami (SH2): Using the fact that Melfice is more likely to use full power than Kurando, I guess.
Emelious de Pamela (G3) vs. Dr. Cid w/ Famfrit (FF12): Emelious uses a weapon that can murder gods, the Espers of FF12 are strong but generally taken out by NORMAL HUMANS, let alone those who have been proven really strong, and Dr. Cid himself isn't much.
Magus (CT) vs. Nils (FE7): Nils shouldn't be in Godlike. Yes, Ninian nuked a few a dragons...then basically was out of power right from there. Magus is a complete and total bad ass, meanwhile; it says something that plotwise, only time he was defeated was either by Lavos, or a weapon designed specifically to kick his ass.
Heavy
Noa (LoL) vs. Darc (AtL4): I'm going with the fact that Darc proved he's stronger than like all other Deimos on a regular basis is better than simple Ra Seru.
Solo/Sofia (DW4) vs. Luke fon Fabre (TotA): Kneejerk, whatever. Fuck you hyper Resonance on that note.
Gallows Carradine (WA3) vs. Frog (CT): ...Frog shouldn't be in Heavy. Ok, he wields a legendary sword and is skilled! So are lots of DLers and such. Gallows, meanwhile, is one of 4 People on the entire planet who can use Mediums *AND* clearly the most skilled at it, and Mediums are total bad assses.
Kyra Tierny (PS4) vs. Miranda (LoD): Kyra's no heavy either; she's an Esper and that gets her...uhh...not much? Some magic potential, but she's nowhere near the same level of, say, Rune. MEANWHILE, Miranda's got Dragoon Powers going for her which ARE badass.
Middle
Lucia (Lunar2) vs. Arnaud G Vasquez (WA4): You didn't specify which Lucia so I'm giving her her full powers! <_< >_>
Tseng (FF7) vs. Momo (BoF3): Uhh...Tseng has just as much screen time as the other Turks despite being Disc 1 only. You just never fight him, so he ends up being forgettable. That said, being in the Turks ALONE pretty much implies some level of bad assery, since from what little FF7 tells us, Turks are impled to be about as good as you can get in Shinra without being genetically enhanced (Read: SOLDIER.) Not sure how much that says...but should beat someone whose only power is holding a giant cannon and does NOT know quite how to use it.
Also, wouldn't hold him "assumed dead" against him given the guy he was facing was freaking Sephiroth.
Tim Rhymeless (WA2) vs. Yuffie Kisaragi (FF7): First off, I find it appauling the way these are ranked, and secondly, what is up with using THE SAME FREAKING GAMES OVER AND OVER AGAIN? Consecutive matches with FF7? Please, show more variety than that.
Soren (FE9) vs. Mareg (G2): Typical Mage vs. Typical Large Guy with a really big spear...I'm favoring the guy whose probably got a lot more stamina.
Light
Guillame (S3) vs. Guido (G1): Epic.
Baku (FF9) vs. Mieu (TotA): Baku can fight, Mieu cannot
Leena (CC) vs. Relm (FF6): I am absolutely APPALLED by this. Relm is NOT a Plot Power Light; again, the game shows (if through humor) that her powers are something to be respected, and she has magic and all that (native Thamasan, etc.) She should be in middle (she's still a little girl with little to no battle experience, so even her powers can only get her so far). Leena's just a country girl with nothing going for her but a spatula, meanwhile.
Chisato Madison (SO2) vs. Euram Barows (S5): Chisato is a Nedian which gives her...slight advantages! More to the point, she apparently has actual training in martial arts, uses a taser, and does a lot of dangerous activities on her own. Euram...uhh...Euram.