Ive found that a 9/30 build with a fast weapon and light armour is fun as fuck. You get something like 185 wpf and 10 athletics, which means the speed bonus still nets you lots of kills. The best thing to do with this build is to ninja yout way around the main fight and backstab the archers/xbows. You can normally kill a good numbver of them before they even know whats going on and dodging arrows is piss easy with such high ath.