Edit: Whoops, posted this from mobile, so I missed the banner saying to post all requests to the requests forum. Sorry about that.
Edited by LimeANite - 1/18/14 at 10:40pm
Depends on what kind of music you usually listen to. I've been using the P3, which is pretty engaging for modern music i.e. pop, hip-hop, trance etc. However, it does sound slightly veiled if you want to listen to acoustic or classical music. I'd say the P5 should do quite well too.
The ML Mikros 90 has come up a few times in other threads as a set of good headphone, although I personally haven't tried it myself (can't seem to find it with any retailer in Australia).