Godlike
Charlton Blunt (Wild ARMs XF) vs Terra Branford (Final Fantasy VI): Dunno. Terra blocks silence, so Charlton inflicts Disease instead, and does some damage. Terra now gets to 2HKO him. She can... morph, wait for him to take another turn, easily survive whatever he does (physical attack? Halved Black Corrosion? Dunno), hit him once, get Energy Drained, hit him again. She pretty much needs to 2HKO, though, otherwise Charlton is hitting her five times and even with four of those halved by Morph I that's too much (since Energy Drain gets pretty mean). So does she 2HKO through Energy Drain? Not sure, need to figure out exactly what average damage is to me against him. (Also, scaling SRPG bosses by the number of PCs they fight and then not giving support credit is silly-faced.)
Arceus (Pokémon) vs Genevieve (Valkyrie Profile): Steel is weak to fire, but nulls poison and halves ice/dark = about 20% less from Indisc than normal. Open with Cosmic Power, Indisc is now low 2HKO. And he 4-3's, so he should be able to sneak in enough Cosmic Power/healing to win. Not a bad fight though.
Heavy
Latooni Subota (Super Robot Taisen Series) vs Ephraim (Fire Emblem: The Sacred Stones): I guess. She might run out of offence though?
Middle
Avril Vent Fleur (Wild ARMs 5) vs Frog (Chrono Trigger): I assume since IQA has been used in Futurama before that this is PC, in which case...
Light
Russel Bergman (Super Robot Taisen Series) vs Josephine (Suikoden V): RUSSEL. Anyway, kneejerk here as much as anything, the actual match gives me a headache. Josephine is pretty terrible and Russel should have enough skills to get him through this. Plus MESSER evade.
Purugly (Pokémon) vs Chu-Chu (Xenogears): Fake Out, then 2HKO from there with Body Slam works pretty well at worst. Also is nearly twice as fast. Purguly's pretty good if you can't exploit its bad durability.