Godlike:
Loki (VP1) vs Zeon (SF2): Go first OHKO.
Rose (LoD) vs Ryu (BoF1): Seen this recently.
Odd Eye (SF2) vs Genevieve (VP1): Don't think Odd Eye halving three elements quite saves him here? She has a few other things in her favour like evade and raw HP.
Altima (FFT) vs Melfice (G2): Man I dunno, and I don't care to math this out.
Heavy:
Malik Benedict (WA3) vs Demi (PS4): Haha, oh right, this was one of the DL's great all-time robs (unless you see Demi being confusable I guess). Anyway, not inclined to make that parentheticised judgement call, so ITE damage > Malik.
Ramladu (SF1) vs Maxim (Lufia 2): I think Ramladu's pretty good?
Arngrim (VP1) vs Peter (SF2): Not sure who's faster these days, but I'm confident Arngrim 2HKOs and less confident Peter does, and Arngrim even has some evade to tilt things his way. Basically Arngrim feels like a better version of the same thing.
Middle:
Garr (BoF3) vs Marivel Armitage (WA2): Surely.
Rena Lanford (SO2) vs Lucca Ashtear (CT): Lucca has enough time for a lucky chain of confuse probably.
Nina (BoF4) vs Norris (CC): Norris' techs sounded more lightning than earth. Close if they're the latter, though.
Wiegraf Folles (FFT) vs Balk Fenzol (FFT): Wiegraf is more damaging, Balk is faster and... probably more durable? I'm not sure.
Light:
Janus (VP1) vs Melville (S3): Faster... 4HKOs first? I think.
Melody Vilente (WA3) vs Raja (PS4): This takes a long time but Raja can't really break the barrier ever, I think. (Game-worst dex means he can't even hope for crits.)
Hrist Valkyrie (VP1) vs Vinsfeld Rhadamanthus (WA2): VP1? Yeah. I mean we could vote on VP2 but meh, lololol slaughter light not very interesting.
Tia (Lufia 2) vs Grey (VP1): Mostly just copying Super.