Who is deadliest? (Old and new Otto, also Old and new Ribcage)

Alright, so go easy on me, this came to me at 12:00 to 1:00 AM (31st of Dec)
(If you want to see a different set up of these 4 or you want your own just tell me, if you want your own in a fight then be very descriptive)
Stats:
Old Otto's strengths and weaknesses.
S: Has used a rifle enough to be good with it. Calm under gunfight pressure.
W: Never had to go into a hand-to-hand much. Fist fights are weakened by missing right ring finger.
Old Rib:
S: Good with a machete as he uses it a whole bunch. A good fist fighter.
W: Doesn't like to fight, Despite knowing how to use a machete. Dislikes Gun shots.

New stats:
New Otto
S: Great with a crowbar. Uses Guerrilla tactics due to lack of firearms. Decent at sneak.
W: Is not used to dealing with other human enemies.
New Ribcage:
S: Tries to intimidate his enemies with loud threats. Uses his gun way to much. Is used to dealing with human enemies.
W: His insanity does stop his process of thought during a fight leaving only a brawn instead of brains.

How I think this battle turned out. (Otto VS Otto #2)
They two begin in a building, both scavenging. New Otto would be searching every where when he hears the Old Otto opening a door new him. The new one would jump to the side of the door. As the old one comes through, New Otto swings his crowbar down on the his enemies head. New Otto see the Rifle in the old one's hand and says "If this was in the open I would be dead."

(Rib#1 vs Rib#2
These two insane bandits would meet toe to toe, but the New Ribcage is crazier than is older Predecessor. The Old Ribcage would become afraid as the New one screams things like "I will use your scrotum as a hacky sack" And other nasty scares. Old Ribcage would never be heard from again.

Old Otto would win, new Ribcage would win.

Well, In my own opinion here is why Old Otto would likely lose and why new Ribcage would likely win. Old Otto is not used to having to fight like New Otto is, New Otto has to use Sneak attacks and Old Otto never has to fight Guerrilla fighters and he wasn't one himself, this would allow New Otto to take the old one out. The new Ribcage is a complete Psycho path and uses fear while the old Ribcage doesn't really fight if he can help it (Unless it is Tom Dixon but that is over now) So, Soon I will edit why.

Ohh I'm gonnah start it again, Tom and Ribcage shall feud one again!