Godlike
Shania (Shadow Hearts: From the New World) vs Culex (Super Mario RPG: Legend of the Seven Stars): Um. Well Shania needs to (a) kill the wind crystal on her first turn, and (b) survive from there. Dream Porter actually makes this a possibility though. Wind Crystal has about 62% magic durability by my reckoning, which survives Sun Flare at base... but not after Sanlittobell, so obviously Shania uses that + Sun Flare. Kaboom. Sun Flare's got a big AoE (you can usually catch most enemies in a fight with it) so I'd be fine with it hitting one crystal and any crystals adjacent to it. So she can hit earth, wind, and ice all at once. However, it doesn't look like ice or earth are fragile enough to be OHKOed. So... yeah, she faces the combined might of all of Culex's offence, with both fire and ice instant-doubling at minimum (possibly earth as well, since using a double is laggy). Actually, she's better off going for full-out offence and possibly killing earth and water as well, but now she's unbuffed and dies to Corona + Dark Star. Yep, stripmonixer nonsense not good enough here. If you see Sun Flare getting all four crystals at once she may pull this out, but probably not because she has no large AoE moves besides Sun Flare and can't double Sun Flare with itself, so something will live, and she can't afford anything to.
Heavy
Lashiec (Phantasy Star IV: End of the Millenium) vs Lenus (Legend of Dragoon): Lenus is happy her best damage is dark (which Lashiec weirdly does not resist!) instead of ice (which Lashiec weirdly does!). Anyway, Lashiec is more durable, but... only slightly thanks to Lenus' impressive MDef (she's about 2PCHP + cuts magic by 45% = 3.6, he's about 4PCHP). So Lashiec has a 5HKO here. Lenus, meanwhile, does about 5% to Lashiec at full HP, but as soon as she is hit twice, she counters for her monstrous double Dark Mist which does 34% to Lashiec. And since she has three more turns before dying, she gets off three more of these. This is actually a win for Lenus with some room to spare.
And do keep in mind this is how I feel on the match, and I don't reward Lenus for only facing 3 PCs while Lashiec faces 5. If you do, Lenus just outright wins magic durability and this becomes a slaughter.
Middle
Ray (Fire Emblem: The Sealed Sword) vs Natalia Luzu Kimlasca-Lanvaldear (Tales of the Abyss): Yeah, Natalia wins if she never attacks (Ray has 1% crit, fear), but... Ray 2HKOs and Natalia has to trigger counters. It's in both their interest to sit there staring at each other, but you know how I feel about that. Both get forced to attack, Ray wins.
Stocke (Radiant Historia) vs Guy (Fire Emblem: The Blazing Sword): Kneejerk of Stocke not being all that great.
Light
Raticate (Pokémon) vs Viki (Suikoden Series): Raticate is very similar to Nanami outside lower durability... very low 3HKO off good speed (he also has gravity to make sure he completes 3HKOs when he actually gets 3 turns, but that's not terribly relevant here). So, same match as last week pretty much!