Just for giggles, I thought I might make for interesting conversation to contrive a list of preferences that would make up the perfect hp. Choosing your favorite aspects from different makers. There are no rules here so feel free to chime in with whatever. For me:
1. He-400 bass
2. Hd-650 mids
3. Stax sr-007 treble
Wrap it all up in a Sony ma900 frame with a pair of lcd-3 leather pads. Oh course it would all amp perfectly from your phone.
Alternately you could take the bass, mids and treble from the lcd-3 and put it in the hd650 frame and I think I'd be just as happy.