I'd say Sabretooth. Very good choices i'd think. Both have the ability to do damage to the other... but sabretooth has lower durability... but higher manuervability, and healing factor... and i'd have to give him a "slight" edge in fighting skills...
Whereas hellboy... while no stranger to fighting... is close to sabretooth,, a hell of a lot stronger i think.. plus a much higher durability.
I'd say sabretooth in a slight majority, however hellboy is entirely capable of pulling a few wins.
This is a damn good fight. Both mad strong, and good fighters. I think the fact that hellboy fights some crazies would be abit of a help. Sabretooth probs has a better healing factor.I guess Anung un Rama could just rip off his horns and stab him in the brain. Sabretooth would probably win, but it would take him a long freekin time to do it.