So far after seeing the 2 seasons of Deadliest Warrior these are my favorite weapons...
Kilij, can cut three people in half, as seen with three slashes to one pig.
Halberd, could destroy a cow with 3 in 1 weapons. Ax, Spear, and Hook.
Flinged Mace, preety much a bomb in a head on impact.
Ps. Like the the Mace I like pretty much every crushing weapon; i.e.; Spartan shield, Viking Shield, Kanabo, Burda Club, etc.,etc..
RPG-7, a great exploding weapon from 100 meters +.
LPO-50 Flamethrower, largest range, yet. Perfect for killing.
Colt Revolvers, fastest quick draw and great accuracy.