Wow, this is quite nerdy, but here we go.
I would choose Sephiroth just because he is the coolest
Kratos, as for me, looks like Arnold Vooslo went mad...
Really, he looks OK for a wrestler, but I dont know, he looks too macho for a non FPS videogame IMO
You have not only found your way to a vide game sales website, but have registered for it, and are now posting on it.
The "nerdy" line was crossed a long long time ago.