Blue (SaGa Frontier) vs Tiz Arrior* (Bravely Default) - Bravely Second.
Lenna Charlotte Tycoon* (Final Fantasy V) vs Kimahri* (Final Fantasy X) - Eh, sure, I'll buy Snowfire hype.
Alexia Lynn Elesius* (Wild ARMs XF) vs Gawn Brawdia (Wild ARMs 4) - I think Alexia wins if you scale down the amount of bullets Gawn has. But I'm not inclined to make this tiebreak in a twink league setup. Needing to heal more than once with HP Burst is a recipe for failure to me.
Brahman (Digital Devil Saga 2) vs Yuna (Final Fantasy X) - Oh boy, Brahman bullshit meets Yuna bullshit, joy joy. The deal here is that the first twoforms are pretty much useless: Yuna can probably Protect and Shell on form 1 (Light is evadable, so it's going to massively suck against her), then stall until she gets an Overdrive gauge full. Hamaon and Xanadu are useless against humans to boot. On form two, pick up one of the weaker aeons, then start the meatshielding shenanigans. Problem is Brahman, starting on form 3, has actually pretty good odds of breaking through the meatshield and picking off Yuna instead, and he gets access to Eternal Zero on -two- forms... but Magus Sisters+Anima probably work there, since Brahman probably can't one-round them all at once. Once form 5 kicks in, Ixion to dispel Eternal Zero and finish off should work, I think. Still pretty dicy, though, and Brahman might be able to work it out due to Mind Charge (for all that it's only 2x damage, not 2.5x in DDS). If you disrespect HP buffering even somewhat, though, Anima Overdrive on form 2 should make very short work of Brahman. And frankly, I'm not inclined to make tiebreaks for Brahman anyway.