my brother and I were talking about how they tried merging MJ and Gwen Stacy into a single character in the Raimi spider-films. we felt like this didn't really work. so we got the idea of trying to fuse two even MORE incompatible characters together into a single new "fusion" character.
our best idea was Reed Richards + Wolverine = WolveReed.
as a bonus, come up with some arch enemies
an obvious answer to WolveReed would be SabreDoom.