Godlike:
Isolde Schelling (MK) vs Luis Virgil (XS): Be surprised if this doesn't turn out this way. Also, Virgil's multiple form things lets Isolde set up some timed card ridiculousness.
Cloud of Darkness (FF3) vs Heat (DDS): Unlike OK, I don't think this is a good fight with DS. (Also isn't a good fight with NES, just other direction.) Cloud of Darkness is pretty much the perfect Heat spoiler. Even assuming she doesn't go first (which would involve her tearing out a huge chunk of Heat's HP), she can use Particle Beam to instakill the hands, double that with Lightning to hit weakness and get another turn, then Particle Beam again for massive damage, and Heat needs to waste one of his two turns respawning the Tentacles just to keep up.
Heavy:
Artea (Lufia 2) vs Ike (FE9): Goes first, isn't doubled, hits the right defence stat.
Middle:
Gaff Gafgarion (FFT) vs Guy (FE7): Sure, I can see the Def difference between him and Neimi tilting this. Other factors help too.
Light:
Luke Fon Fabre (TotA) vs Vincent DeBoule (S2): I don't really see Vincent being able to press much of an offence here.