Godlike:
Ghaleon (Lunars) vs Yuna (FFX): Faster, Ghaleon takes a ton of damage from Anima before killing her, and I don't thin Ghaleon can reliably one-round Shiva and thus prevent her from getting an Overdrive, that should be enough at worst.
Alternis Dim (BD) vs Ryu (BoF3): Alternis can wipe out a dragon form in a single go below half health, but he's so much slower that Ryu can easily retransform, smash, and force this to repeat. Alternis might maaaybe threaten Ryu's resources if he could OHKO all battle long, but as is, not a chance.
High Heavy:
Chris Lightfellow (S3) vs Ryu (BoF2): Silent Lake... although it's possible Ryu can turtle with Guts through all of Chris' L2 charges? (She has 3.) May need to look closely at Guts to decide this. Kneejerk is Guts not that great, though.
Jowy Atreides (S2) vs Shania (SH3): As per a previous match (I think it was Jowy vs. Lucina?), I do take Jowy against an average which includes him, which raises the kill point to ~1259. That still leaves him with just enough damage to win here, though. It's super-close so I'm hardly going to be bothered by votes the other way.
Low Heavy
Rune Walsh (PS4) vs Rei (BoF3): Hinges entirely on Rei getting instant death resistance. Rei's own status is laughable here, and he needs a turn to go Weretiger and tear Rune in half. So Rune has one shot of Negatis, which will certainly hit if Rei doesn't resist ID. The old topic gives Rei one source of death resist, that being the Lifestealer... but Dhyer doesn't list that and a FAQ has it as "enemy drop/Fairy Village", so I dunno. Still, there are Talismans... I don't recall what the default BoF3 accessory they'd push out to me is, but I highly doubt it's anything that could possibly swing the match.
Demi (PS4) vs Sharon (LoL2): Faster. I highly doubt Sharon is so frail as to die to Demi's physical + Phonon, and that's the only possible way I can see Demi ever not giving Sharon a turn below half health with 100 AP. Sleep's too unreliable against those faster than Demi.
Middle:
Ulrika Mulberry (MK2) vs Lilina (FE6): Silence, or elemental resistance, or... something. Anything.
Flay Gunnar (MK1) vs Nowi (FE13): Strong kneejerk. Everything Flay has seems to help him out here: Blocker, Last Stand are both relevant; defence down is extremely strong against Nowi, and timed cards to get past her counters some. Could be wrong, someone might want to math this out... but I think so.
Ooooh Elfboy!
Doll (SaGa) vs Onix (PKMN): Faster. Doll just misses the 2HKO with DarkSphere (17% to average, need 35% to kill Onix), so he has two spare turns. Screech can make Bind very dangerous indeed (and he can get past the draining), and Bindspam does its thing. Hell, he can probably get away with just one successful Screech then Bindspam, although it'd be dicy with his moves' accuracy, so the extra turn is some nice insurance. Doll really wishes that she could use a shield.
Liz (WA2) vs Nina (BoF3): Well, they both 2HKO each other, I think want to say. Whoever goes first wins? Nina is +0.67, Lilka is +0.45, Kanon is +1.77, Liz is between Lilka and Kanon. That... seems to favour Liz, but I could be argued. Actual numbers could also make a difference here. The main thing which makes me pause is that Liz certainly could miss the 2HKO (it requires him both to not be able to survive a bomb backlash combined with Nina's turn, and then for physical + Bomb to not be good enough)... I don't think he does, but it's possible. So... not certain. But going with my best guess for now.