Here's my two cents. I've been in like 5 full on fights my whole life. In the end, you just realize it's ridiculously dumb and what? It gets you +attention for a few days? But a street fight is a street fight, there is no rules. Anyone who tells you differently is wrong. Do whatever it takes to win but know that if you do do what others consider "pusillanimous individual moves", they're all gonna be like "durp lololol u poosy cigarette lern2fite".
And you obviously don't understand that your reputation depends on the way you fight.
basically this to sum it up. Some people care about rep. Some don't. If you don't, then RIP HIS loving HEAD OFF
oh and basically try to knock him out and get face shots, stay on the upper ground if he/you're grappling and wrestling, and make sure to block too or you're going to get hit a lot.