Glaswegian rules fighting.
Rule one: By reading this, your opponent has been given time to hurt you. Ha.
Well, while I dislike fighting in general (as it's a bit of a waste of time) and nobody seems to start fights with me (2 metres, 100 kilos- I am not making this up. I'm also a bit fat and slow). Really, though, I'm so even-tempered and good at negotiating that I'll invariably defuse a fight before it starts.
If I have to fight, I wait for them to make the first attack. Then, depending on how great an asshat they are, and whether they have managed to turn me from my amiable self into my psychotic self, I'll either calmly overpower them with minimal damage, or, if psychotic, hit them in the face with a chair/bottle, headbutt them (Glaswegian kiss, not Liverpool). If they try to kick me, I either grab it, or simply close up and pummel them close-in. If they punch, I shrug it off. If they chop, I ignore it. If they're a skinny, wizened old martial arts master, then I crumple to the floor as my tendons give way, but beyond an actual master of a martial art, I can pretty much ignore whatever fancy style is being used by bull-rushing them and simply using the height, weight and incandescent fury advantage. Or clubbing them senseless with a chair...
In games- Light Machine gun. Close or long range, I don't care.