Gimli or Lurtz: guys who fight dirty.
Lurtz threw some strange, shield-weapon at Aragorn, punched his lights out, and even headbutted him. Sure, he lost, but he lost in style. I also liked the way he scowled and growled when Saruman told him to bring back the halflings alive and unspoiled.
There's a scene in TTT in which Gimli buries his axe in the groin of an Uruk berserker coming over the wall. Lots of moves with his axe besides swinging, too, like a jabs, and hook/pulls.