Godlike:
Medic (EO1) vs Zemeckis (Brig): Can't vote.
Yuna (FFX) vs Hero (DQ5): DQ5 Hero has no place in Godlike, the fact that he got this far I cannot fathom (would have to look at who he fought); that said, Yuna should destroy him.
Ryu (BoF3) vs Revya (SN): Can't vote.
Rolf Landale (PS2) vs Deis (BoF2): If nothing else, Deis is KIND OF replacable by Nina, Rolf is replacable by absolutely no one, combined with how he's there the entire game; Deis misses out roughly the first half of the game.
Heavy:
Levin Brenton (WA:XF) vs Alena (DQ4): Yeah, guess I'll go with the fact that the nature of XF's system makes it easier to replace Alena.
Sharon (LoL2) vs Nina (BoF1): Nina is absolutely invaluable at times; Sharon is really good, but feels like you wouldn't lose quite as much if you replaced her with Kazan or something.
Nina (BoF4) vs Terra Branford (FF6): If nothing else, Nina's from a system that promotes individuality more, and she's already in running for game best PC cause of that, let alone there are a few skills she can get that offset her flaws. Terra's best at what she does, but there's more options and technically more replacable due to FF6's magic system.
Arnaud G. Vasquez (WA4) vs Ephraim (FE8): If Arnaud was Raquel, this would be a match. As a side note, someone like Eph being Heavy when the DQ5 Hero being Godlike I find offensive!
Middle:
Zidane Tribal (FF9) vs Meru (LoD): First off, lol to the idea of Zidane being in Light; he's actually rather good in game, and if he sucks, a clear case of "you're doing it wrong", so don't even try to be cute like that. THAT SAID, Meru's still better.
Alice Elliot (SH1) vs Angelo (DQ8): Alice feels kind of meh in that period after Cure stops being unique healing, and Arc kicks in, Angelo I remember being solid throughout.
Albert Serdio (LoD) vs Vitali (SN): Can't vote.
Aika (SoA) vs Arche Klein (ToP): ARche is good against everything, Aika is only really good against things that Delta SHield helps against.
Light:
Tim Rhymeless (WA2) vs Kain Highwind (FF4): Kain had a good run, but Tim belongs in Middle.
Natan (SH3) vs Gala (LoL1): Both are meh, but in Gala's credit, he has game best durability in a game where its more noticeable, and cannot be replaced...literally. Natan is utterly unspecial in a game where many others can take his spot.
Moulder (FE8) vs Massimo (MMXCM): Massimo is a forced Warm Body for a few chapters, Moulder is your only healer who gets obsoleted quickly...and yeah, during that section where "Eirika and Seth kill things dead" to boot, so healing si needed less. Massimo can also be made useful throughout the game, if mostly as a pure back up, Moulder...never has a reason to be used after a point.
Zhuzhen Liu (SH1) vs Duran (SD3): Zhuzhen is game worst Item Boy in SH by default (slow and bad durability, huzzah!), Duran at least has the durability and healing and sabers thing.
Onix:- Vote for the worst of the two in this division.
Adam (SF1) vs Karla (FE7): While Karla can break defense, she also can get perma-killed and is very good at it, so she can't even be used to reliably bait out hits. Adam just costsyou a negligible amount of cash meanwhile. Adam also is available first play through and doesn't require you use a specific PC the entire game.
Luvdisc (RSE) vs Sergei (S1): Suikoscrubs > Luvdisc.
Malak Galthana (FFT) vs Mime (FFT): If nothing else, Malak can be TURNED INTO A MIME as an option, the fact that he has others makes him better by default.
Dragon Master (OB) vs Koroku (S3): Super oversells some of the lesser damage characters, and I'm sorry, but the SUikodogs are just that awful.