Yeah, the HD650 is a great workhorse. The HD800 is on a whole other level but my HD650 gets just as much head-time.
I've owned the LCD-2.2 alongside the HD650 on two separate occasions. The Audez'e (as good as it is) could never pull me away from the HD650. It's a side-grade IMO and I couldn't justify owning both. The HD650 won out. Both times.