Capturing bases can be fun.
Furballing is a blast.
Kicking someone's arse in a protracted dogfight that gives an adrenaline rush is awesome.
All of that aside, a true victory for me is defined as spending a few hours with good friends of mine that I've made over the last 7 + years (some whom are closer than folks I actually see more often, in person) drinking, shooting down red things, getting shot down by red things, swapping tall tales and generally having a good time.
That is winning, to me...