I'm unsure who would come out of this fight alive, if one was to die. Wrath's got his "ultimate eye", which to be honest, hasn't been explained much besides the fact that it somehow gives him Badass +9000. It depends on how well Greed can use that body of his, and if he has access to Ling's fighting skills.

Talking about badassary, I like Ed's new look. It's got a very "Japanese ninja protagonist" feel with the white cloak and all.