Originally Posted by
JimSolo
In terms of soloing, DH has the edge. There's too much utility and mobility, and (although I havn't tested it) I believe Vengeance does more damage in most scenarios as well. Although DK's magic resist and recovery may be slightly better for older stuff.
In terms of running with a few friends, play whatever you want. DPS is triple what it was in WoD (on average), so everything is going to die in 1 - 2 minutes anyway and you'll probably end up not having to bother with a lot of mechanics.