1. Vibrant sound (bass, mids and highs) because I listen to everything from rap to rock to dubstep to old school jazz, etc. I listen to everyone but opera.
2. Look decent. I don't want something like a helmet on.
3. Decent noise isolation (noise canceling is nice but I want my headphones to work after the battery dies)
4. Not so bad sound leak. (girlfriend always getting mad at how loud i listen to stuff)
5. And I know it's random but i like the single side cord. The cord coming out of both headphone seems to tangle.
Thoughts? I kind of been considering the 3 listed above.