I think pbrstreetgang did a pretty good job with the comparisons. My current faves are the Sennheiser HD650 which are warm and full sounding with slightly rolled off high end. The other phones I dig are the AKG K701's. These are little leaner, a little more detailed, and faster sounding. I like them both for different reasons. I tried the Beyerdynamic 880's once and found them to be too forward, bright, and harsh sounding. In a dull setup these might be the ticket, but not for me.
Hope this helps. I think the bottom line is that you need to try a pair in your own setup to truly know if you like them. Everyones tastes are different so take all opinions, including mine, with a grain of salt.