I find the DT700 pro/80 are a pretty reasonable can to start off with if you are looking for something that is good for rock.  The 770 are fun and, while the midbass can be too much for some forms of music, I don't generally have problems with it.  There is some sibilance in some songs, but not generally enough to greatly detract from the music.  The clamping pressure may be too much for some people, but is good for people who like to move (drummers).  Isolation is more than adequate for most situations, although they aren't all that portable.  The 770 do their best with rock IMO, the recessed mids are less audible there.  In the same situation, I would likely buy these again. 
 
These cans can also be used as a hammer in a pinch.