Ok, so I decided to test today, and realized something:
On single targets, I average ~1.4k dps.
When there are 2 targets, will do about 2.2k dps. 3 = 3k. Add on 800 more per target.
My hunter is the opposite. I know Frost is essentially an AoE spec, but I'm oblivious as to how I'm supposed to get higher single target dps ._.