Heavy
Ninja (Final Fantasy V) vs Kluke (Blue Dragon): I set this match up because there's a whole lot of close calls which I was too lazy to math out at the time. Essentially, Kluke can charge one-shot Ninja with Shadowus, but needs to charge, which may get her doubled. Whether or not she has time to do this... mathing it out, depends on which damage average you use for Blue Dragon, she needs 80% charge (=1.53 turns) to do it with the highest, but only 70% charge (=1.46 turns) with the second. Ninja has 115% speed to her 83%... so... actually, it doesn't matter which you use, unless you use the one-turn which feels like it overrates her. Furthermore, if you use the lower FF5 damage average, Ninja just OHKOs. Less close than I was kinda hoping, but oh well.
Zalbard (Shining Force II) vs Ceodore Harvey (Final Fantasy IV: The After Years): Hm, Zalbard goes first, but Ceodore goes between his two turns. Zalbard 2HKOs with his physical, but... yeah, Blink tilts this, coupled with lightning halving. Zalbard's Bolt 2 is too weak to finish off Ceodore even getting two shots. He can try to constantly dispel Blink by attacking but his speed isn't any good past the first turn so I'd see Ceodore lapping him eventually, and Haste means victory.
Middle
Necromancer (Final Fantasy V: Advance) vs Dracula (Castlevania: Symphony of the Night): Necromancer should have pretty good damage (very powerful attack + elemental strengthening), and Dracula just sucks.
Dalton (Chrono Trigger) vs Jiro (Blue Dragon): Healer against Dalton.
Light
Andre (Shadow Hearts: Covenant) vs Allen Ridgeley (Xenosaga: Also Sprach Zarathustra): Go forth, Andre! Devour Light! Uh yeah, pretty sure Allen's healing gets overwhelmed and Andre certainly outstats him badly.