Well the HE500's are great hps :) I don't want to give the impression that I don't rate them highly because I love mine. It's just I don't think they are as resolving and coherent as the LCD2.2's. Especially in regards to bass and mids. IMO
I also think it is good that you rate them this highly, as it gives me hope that I don't need to look at any other top tier phones :) and this gives my wallet some peace of mind!