As a demon hunter, you have three choices:
- Dual Weld 1H crossbows
- 1H crossbow + quiver
- 2H crossbow/bow + quiver
Given equivalent level items of all of these types, in every single situation I have ALWAYS found the 2H crossbow/bow + quiver to be the highest dps of the three combos. Next highest is 1H crossbow + quiver and the lowest dps is dual weld 1H crossbows.
Is there ever a reason you would ever choose anything but a 2H crossbow/bow + quiver for end game dps? Are there other important factors to think about besides DPS (like attack speed)?