Godlike
Dorothy (The Wizard of Oz: Beyond the Yellow Brick Road) vs T260G (SaGa Frontier): Different tier of Godlike. Probably just goes first and blows her up, but even if she gets one turn I'm not sure what she's going to do against a durable status-immune opponent who doesn't rely on reflectable magic.
Kaguya Nanbu (Super Robot Taisen OGs Saga: Endless Frontier) vs Braev Lee (Bravely Default): Hmm. From turn 3 on, Braev can output 2.2PCHP damage whenever he feels like it. That's enough to overpower even Guard, which pretty much forces Kaguya to cast Miracle every turn from then on (combined with Guard, this will reduce Braev's damage to a mere 30% tickle; 60% if she wants to go without that). This puts her on a pretty strict timer. Braev, meanwhile, can wait her out by defaulting a lot, which reduces her damage by 75%. Even if you disallow him from defaulting at BP 3 (which would be reasonable; I don't believe he ever does) allowing Kaguya a safe attacking turn then, that's relatively few windows she has before she runs out of SP, and Braev can absorb hits like a champ even when not defaulting. I have to think he has this; he's really dumb against people who don't have super-high offence to punish him on turns he lets his guard down (Kaguya even has the best offence of any EF PC, but it isn't enough).
Heavy
Denam Pavell (Tactics Ogre: Let Us Cling Together) vs Ayla (Chrono Trigger): Both more physically tanky than they are damaging. Ayla goes first, 4HKOs with Tail Spin. Denam also 4HKOs, but is slower. Even a Mighty Impact in there doesn't push him to 3HKO, and I'm not sure he gets it. 4HKO-fests in Heavy, what are we coming to.
Middle
Leonora (Final Fantasy IV: The After Years) vs Sage (Final Fantasy III DS): Sage is slow, but Leonora is somehow slower. Opening with Reflect will ward off status... but apparently it's only one-shot? And to make matters worse, Leonora can then cast Reflect on Sage, getting rid of Sage's reflect and applying it to herself so she can bounce status off herself next turn. Since Sage can't block silence that I can see, pretty sure he's screwed.
Lion (The Wizard of Oz: Beyond the Yellow Brick Road) vs Ninja (Final Fantasy): Ninja needs 4 turns to win (just misses a post-Haste 2HKO). Lion should maange to 3RKO - (4-5HKO with two Lion Dashes a turn, probably misses one). D-Formation could help too, I dunno.
Light
Jagen (Fire Emblem: Shadow Dragon) vs Jelanda (Valkyrie Profile): Jelanda 3RKOs at worst here using Double Fire Storm. So does Jagen 3HKO first? ... yeah, he does 28% per swing to average, Jelanda only has 80% PCHP. Jelanda wishes her Soul Crush weren't total garbage, since she does get one, and it still doesn't let her 2HKO, although she does do around 99%...
