That's such a complex issue. I can't handle too much fighting. I mean, some women escalate arguments into fights because that's just the way they are. I don't have much patience for that.
On the other hand, a relationship that does not have a way for each person to express anger is a relationship that will die sooner or later. I would just say having compatible fighting styles is an indicator of whether that person is the right fit for you.
A lot of it is just maturity, knowing how to pick your battles. True for office politics, too...