I equipped my DH with a 1-handed bows, then I wanted to equip a stronger 2-handed bow. When I hovered over the bow the game showed a -56.1 change in damage if equipped, however when I equipped it, my damage went from 439.4 to 452.77, so it's obvious that the "hover over tool tip" was wrong.
What is the source for this preference of 1-handed weapons over 2-handed?
When the 1-handed bow is equipped:
When the 2-handed bow is equipped:
The set of skills (active & passive) that are chosen:
Stats for the quiver: