that's really great idea , just don't pick more than one name from a single game ( Fallout , Bioshok , left 4 dead )
Use one of FF summons , Anima for example (FFX) ...my personal favorite ;) , Big boss ( Metal gear ) , Link ( Zelda ), some guy from Call of duty maybe ..
Kratos as "Ghost of Sparta" (Gow) must be there in high ranks , he is just so badass :p