Darkrai (PKMN) vs Psaro (DQ4): Darkrai is a blitzer, but that's all he is. I don't think he can outlast Psaro.
Darkrai vs Cyril (SO2): Yeah no, Dark nulling ruins his only slim chance.
Darkrai vs Edge (FF4): Wow, just... so much better at the same thing. Faster, can immune sleep while the other doesn't, has a more potent sleep effect anyway.
Darkrai vs Ryu (BoF1): Ryu must initiative transform of course. But Darkrai still 3HKOs before Ryu's second attacking turn easily enough, and that's without any hype for flinch or doubleturns.
Darkrai vs Seed (S2): Shouldn't have any trouble 2HKOing, isn't one-rounded back, and is faster.
Darkrai vs Samurai (FF5): Darkrai gets two turns before Samurai gets two, but... doesn't 2HKO. Sleep's immuned. Don't think he can take this.
Darkrai vs Saki (SH2): Hmm. Darkrai probably 2HKOs, and is well faster even after any Energy Charge recharge time shenanigans. I guess if I saw Seal doing anything to Dark Pulse... but nah, even then, Darkrai would promptly have a 3-2 and take it anyway with something unsilenceable like Night Shade.
Darkrai vs Vanille (FF13): Vanille can muster the necessary sleep resistance at a durability hit. But... yeah, would need to land both Pain AND Fog in one turn.
Darkrai vs Dycedarg (FFT): I'm not sure what I think about FFT boss HP these days. Dyce is almost certainly 2HKOed though. Aegis Shield to the rescue? No wait, Darkrai's best damage is the non-typed Night Shade ANYWAY due to ignoring the damage reduction.
Darkrai vs Rose (LoD): Oh look, dark nulling. Too bad LoD doesn't null sleep.
Darkrai vs Zera (G2): Unsure. Depends on if Zera's Dragonzap paralysis rate is high enough to hit Darkrai turn 1 (needs to be >73% to me). Darkrai misses a 3-2 and misses a 2HKO if he blocks paralysis with a berry, so he's giving Zera one open shot at paralyis no matter what. Not enough information, abstain.
Geddoe (S3) vs Psaro (DQ4): Pretty sure Psaro had some lightning resistance to make this extra ugly.
Geddoe vs Cyril (SO2): Oh COME ON, why the hell do Cyril's in-game useless elemental defences keep MATTERING. Go fight ACF Lucied kthx.
Geddoe vs Edge (FF4): Um, I think. They both spoil each other's biggest tricks, but Geddoe still 3HKOs with his damage halved. Edge only 4HKOs.
Geddoe vs Ryu (BoF1): Ryu can't resist lightning and his dragon forms provide no MDef boost. Splat.
Geddoe vs Seed (S2): Geddoe can go first and get a Soaring Bolt off, Seed uses Silent Lake + physical, then two more physicals. Geddoe... is saved by Parry, so yeah, Seed misses the 3HKO and gets owned by Soaring Bolt + sword.
Geddoe vs Samurai (FF5): Samurai's ID isn't turn 1 or anything... but yeah, lightning resistance + winning in two turns.
Geddoe vs Saki (SH2): Blocks silence, OHKO.
Geddoe vs Vanille (FF13): Blocks Fog and has a OHKO, yeah.
Geddoe vs Dycedarg (FFT): To be honest, I think Hammer of Raijin may outspeed Dycedarg anyway (he's marginally below average), and I think Thunder Storm does and 2HKOs. And I think there's a reasonable argument that those spells might have been summons in FFT, which would mean no Aegis Shield hype. I'm not sure I buy that argument, but I buy it at least 1% of the time, which is enough!
Geddoe vs Rose (LoD): Bzzt.
Geddoe vs Zera (G2): Zera COULD win, but it requires Zera's paralysis be 80%+ to overcome Magic Repel, AND him to faster than Hammer of Raijin.
Mei-ling (Saga) vs Psaro (DQ4): Dispel+damage is a good trick. Mei-ling can avoid being OHKOed if she equips for fire/ice defence... maybe. But the healing's not good enough.
Mei-ling vs Cyril (SO2): Mei-ling's speed is insane when she takes to pure offence, I absolutely have no trouble buying a 3-2 here. Shield may also block Wind of Destruction IIRC.
Mei-ling vs Edge (FF4): Unsure. Image doesn't deal with ITE, and LightSword IS an option... but Edge still gets two shots if she uses that, and one won't face shield evade (though both face LightSword). Of course she may wake up and finish anyway. Whatever, abstain.
Mei-ling vs Ryu (BoF1): Megawindblast hype time.
Mei-ling vs Seed (S2): There's a chance Seed one-rounds. This is... a lot like the Edge fight. Except LightSword's raw Vit boost probably means Seed will need three hits out of four, and yeah he's not getting that.
Mei-ling vs Samurai (FF5): Definitely gets her second turn before Samurai gets hers. EDIT: But doesn't win with it. So, I guess she uses LightSword and digs in. Samurai has ID which gets immuned, and a relatively low 2HKO which I don't let her spam endlessly, so that path to victory is out (there's also a 5-4 going on even with Mei-ling taking a hit to block death).
Mei-ling vs Saki (SH2): Man I don't think silence even saves her even if I see it working, Mei-ling still has a 3HKO with BoundShot + two physicals I believe (really should have noted that down).
Mei-ling vs Vanille (FF13): Needs both Pain and Fog, and the combination is not turn 1.
Mei-ling vs Dycedarg (FFT): OHKOs if she procs a def-pierce. Puts a weak gun in the top slot so it gets broken first.
Mei-ling vs Rose (LoD)
Mei-ling vs Zera (G2): I think I'll assume paralysis hits just fine here.
Mei-ling 8-2
Geddoe 8-3
Darkrai 7-3
How oddly similar.