Who would win in a fight?

Rylle asks:

Who would win in a fistfight: a dwarf or an orc?

Assume the dwarf is drunk and the orc is angry. Also assume that neither is particularly heroic. No Mountain Kings or Grom Jrs. here. Just a normal, tipsy dwarf, and a normal, angry orc, and four flying fists of fury between them.

Please provide a reason for your declared winner. Diagrams and other visual aids are helpful but not necessary.

I believe this will make the issue clear: