Nice Patsfan. I love! Silversun Pickups.
I find that for my runs, I need a real mix of pace/ intensity. I personally can't pack a playlist with 1 hour of Primus-like drum beats, just pounding away. I would have a frickin' heart attack haha.
I have a lot of Foo Fighters, Silversun Pickups, Tool (stinkfist is so good for working out), STP, some new stuff, like Kanye, Busta Rhyme, etc. but mostly Rock.
I have 3 playlists. My "go to" which is the one I use 4 of 5 days a week. My "long run" which is made custom for each long run, and my "retired" which are songs I have retired from the previous 2 playlists. I update my music once a week, since I run about 35 miles/ week, so I need it to be dynamic.