+1 for /dagger for strict damage.
Based on some quick tables with 300 power/300 condition damage, bleeds are the second-best source of burst damage (top is bone minions, for a quick burst of 2k in two seconds at 80). Getting off two enfeebles, Blood Is Power, swarm to transfer the bleed, and then Epidemic, nets you a ton of Bleed over as many mobs as you could clip with the Epidemic. Needless to say, the numbers are strongly in favour of this as well.
As for WvW, I never used anything but a Scepter/ Dagger/Dagger combo. I would suggest going Dagger/Focus for duelling though, as that gives you stable rejuv (which, assuming healing is equivalent to damage, is superior to bleeding up to four stacks of the latter).