@Harkness6
sorry it won't let me do the usual quote thing
Well, for all rounder that's going to have bass take a look at the shure srh 840. Great can. built like a tank. Pretty balanced signature, perhaps a twinge of mid emphasis. Great isolation/ leakage.
I have a full review here.
For rap, assuming you like your bass take a look at the sony xb line. I have the xb 700. Fantastic can for the genre. Nice bass, lots of it but pretty well controlled as extra bass cans go. Mids do suffer a bit, but i believe they are capable of cross genre listening.
To save a bit of money take a look at the monoprice 8323. I recommend this over and over again. For $30 you wil not find a better can. They're a bit on the warm side. Good build, even if it is plastic.
I have a full review here.
I love love love the the HD 600. One of the most balanced cans you can get your hands on. But seeing as they are opened they may not be the best for rap. I've never felt the bass lacking. And they are indeed fast as they come.
hope that helps. any questions just pm me.