Godlike
Rayquaza (PKMN) vs. Killer (SH3): Instant Death.
T260G (SaGa) vs. Chaz Ashley (PSIV): Chaz can get up to 1.28 mdur, which can just barely take a hit from T2. So is Explode turn 1? Yes if it hits PSY, no if it hits WIL. (Brose ain't turn 1 against anything.) I think there's a case to go either way, so I'll abstain.
Jowy Atreides (S2) vs. Rika (PSIV): Abstain here too! Jowy's pretty fast, not Rika fast but at least in a bit of a grey area for turn 1 Elim. It's been years but I think the 80% number is an average between a 50 speed enemy and a 60 speed enemy, and Jowy isn't better than 60 PS4 enemy speed, but I'm not certain. Abstain, but vote Rika if a tiebreak is needed.
Fenrir (VP1) vs. Jenna Angel (DDS): Ha.
Heavy
Alicia (VP2) vs. Levin Brenton (WAXF): Nope, you need speed or evade or counters for Levin.
Lilka (WA2) vs. Auron (FFX): I thought this might be a good fight but then I remembered the Eject ban. Yeah that's Auron's only hope of dealing with Lilka evade buffing and stalling, his overdrive doesn't one-shot.
Edgar (FF6) vs. Emelia (SaGa): Has the relevant statusblockers. List of slugfests Edgar wins in Heavy against non-fire-users:
Asellus (SaGa) vs. Eirika (FE8): Has ITE options, reverse less so.
Middle
Red XIII (FF7) vs. Anastasia (SH2): See the consensus. I assign a speed penalty for FF7 blockers but that only drops Red to average, and Ana is slightly below.
Blanca (SH2) vs. Elena (G2): Stalls until Blanca decides he needs to pee.
Flay (MK1) vs. October (CSTW): Flay can unload some big damage but he needs a bit more time than this.
Tony (WA4) vs. Sylvain (FE3H): Bunch of kids > Tony > Crested warrior, checks out tbh
Light
Heather (FE10) vs. Poshul (CC): Heather always feels very good in the division.
Linhardt (FE3H) vs. Queen (S3): Queen 3HKOs through Renewal, yep, and can tank two Lin counters, a Fire, and an Excalibur (all he gets). Though, does CATNAP tilt things? If Linhardt uses that turn 1 or 2 (not even both, just one is enough), he's only 4HKOed. So he gets three counters, one Fire, and one Excalibur. That's 102% damage. Queen... is 107% mdur. Close!
Virginia Maxwell (WA3) vs. Karn (BoF1): Agreed that Karn is not bad for Light (really fast, only mediocre rather than outright bad otherwise), but I think Ginny evade is too much. Lots of weak physical hits for her to dodge just gives Ginny too much FP.