Godlike
Ultimecia (Final Fantasy VIII) vs Levin Brenton (Wild ARMs XF) - I... think. Possible that Levins run out of MP and can't finish the job though? Might check later.
Kefka Palazzo (Final Fantasy VI) vs Sora (Kingdom Hearts Series) - Fallen One is MT, I thought? So Fallen One -> ...does he have any other MT skills outside of the limit Ultima? He might hit the limit anyway though.
Onion Knight (Final Fantasy III) vs Sephiroth (Final Fantasy VII) - Flying? Heh, guess that does it.
Sanger Sonvolt (Super Robot Taisen Series) vs Elyon (Breath of Fire: Dragon Quarter) - Yeah.
Heavy
Hero (Dragon Quest V: Hand of the Heavenly Bride) vs Almaz von Almandine Adamant (Disgaea 3: Absence of Justice)
Chrodechild (Suikoden Tierkreis) vs Marcello (Dragon Quest VIII: Journey of the Cursed King) - Chrodechilds go first, Marcello MT 2HKOs... wait, Kafrizzle and Wind Sickles aren't MT? Haha. Though I'm not sure it matters.
Blue Mage (Final Fantasy V) vs Razeluxe Meitzen (Mana Khemia 2: Fall of Alchemy) - Just outslugs due to Blessing of Light, I think.
Aschen Brodel (Super Robot Taisen OG Saga: Eternal Frontier) vs Odie (Soul Nomad & The World Eaters)
Middle
Frog (Chrono Trigger) vs Liu (Suikoden Tierkreis) - Interesting. Liu needs to heal lock here, which he can do with Fuse Dome, but that costs too much. Instead, he's going to grab a Prominence for more Magic and a small speed boost and switch to the Ninja Garb for more speed, to make that double come earlier. With this setup he should 2HKO with Silence Sand -> Fuse Dome. He comes up 118% speed turn one and 111% speed after that to me, so he 7-6s Frog. Seven Silence Sands and one Fuse Dome is... 568 MP and he has 630 max with two Prominences. Barely enough. (Also, since Frog's damage is pretty bad, he can afford to not heal lock the whole time, so the MP issues become less then. But this just makes the win more sure.)
Lieselotte (Valkyrie Profile: Covenant of the Plume) vs Marie (Eternal Poison) - Dhyer: Delirium isn't actually a physical tech, it just requires a librum to use. I'm not sure why it matters because Marie just goes first anyway. Unless RST is better for durability than I think, Delirium -> Pyro III should 2HKO. If not, it should be close enough that a physical will finish it off.
Lilianne Valendorf (Mana Khemia 2: Fall of Alchemy) vs Slime (Dragon Quest V: Hand of the Heavenly Bride) - HITS WEAKNESS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Fauxnel (Valkyrie Profile: Covenant of the Plume) vs Empoleon (Pokémon) - Yeah probably.
Light
Noah "Gabranth" fon Rosenburg (Final Fantasy XII) vs Sanaki (Fire Emblem: Radiant Dawn) - Burn, traitor.
Flonne (Disgaea: Hour of Darkness) vs Cinnamon (Mega Man X: Command Mission) - Probably.
Salvatore (Disgaea 3: Absence of Justice) vs Bernadette Egan (Suikoden V) - Bernadette's definitely going for her physical for damage here, and that eats counters. Disgaea 3 also raises attack power when people don't move. I apply this to both sides, but Salvatore's getting more boosts due to counters so I think she just heal locks before Bernadette can kill, especially with that evasion kicking in.
Chidori Yoshino (Persona 3) vs Judith (Tales of Vesperia) - Yeah.