Originally Posted by
Elyoric
This is purely anecdotal, but it would seem the value of haste goes down the faster you kill trash, which is the goal isn't it? Bosses yes, as those fights are longer, but I went with a Crit/Multi build and didn't have any issues completing 8/8. Regardless, the most important piece of gear you can get is Mirror of the Blademaster.
Go Celerity, Chi Burst, Chi Brew (any are fine in this row), Leg Sweep, Diffuse Magic, and Chi Torpedo. Celerity/Chi Torpedo combined with Victory Roll is an extremely powerful combo, especially when you learn how to snipe low health kills.
If you can dual spec WW, then pick Xuen for bosses as he offers a more reliable 3min dps cooldown.