This wasn't easy.

Mist Dragon because I only have a few memories of Kirin from FFTA. And it wasn't that good. While I remember the beginning of FFIV rather fondly.

Ramuh over Zodiark. Mostly because I remember him very fondly from FFVII. I never reached Zodiark, but the animation for his special attack was one of the weakest ultimate summon moves in the franchise, in my opinion. Plus, while I like the thematic idea of having the extra 13th summon... Yeah, getting tacked on when he wasn't in FFT or FFTA pushed Ramuh ahead. Though, ideally, Quetzacoatl would win for Lightning summon, just for that awesome animation. Should have maybe sabotaged Ramuh just to give Quetzacoatl a better chance. But oh well, already voted.

Bismark over Ragnarok. This one was really tough, mostly because I didn't care about either and they both had negative points. Mainly, Bismark was a replacement for Leviathan that didn't look as cool, and Ragnarok is literally just a sword. Not a fan of either, never got either in game. Voted for the one who had the fewest votes.

Phantom. I don't know what the heck you guys are all smoking, because however little you may think of Phantom, Gilgamesh is one of the worst summons in the series. His appearance in FFVIII involves removing one of the most useful and frequent GF summons in the game, and he then shows up maybe once or twice if you 100% everything and you're lucky. In Dissidia, he's a terrible Assist because he's unreliable. And Revenant Wings is basically broken to the point that you'd even be lucky to get to him. He may be a fantastic character in the series, but he is a seriously godawful summon. And he took Odin from us.