Another friend is a Barb and its not useless, just needs tweeking as they changed so much. If you look at some guides online it tells you what you need for max DPS or whatever you want.
www.noxxic.com/diablo3 here is a good guide site.
Yea 170k was through crit and other passive stuff, they new kit they made is awesome aswell
http://www.noxxic.com/diablo3/barbarian/lvl60-builds/damage-tornado
This was my build previously. Can't remember what I got the DPS up to though!