Who would win in a fight between Superman vs Wolverine?

Anyone who isn't a hopeless Marvel fanboy would conclude that Wolverine, healing factor or not, would be left a greasy stain and a wisp of vapor while Superman wouldn't even be scratched.
Anyone who isn't a hopeless Marvel fanboy would conclude that Wolverine, healing factor or not, would be left a greasy stain and a wisp of vapor while Superman wouldn't even be scratched.