Please try DT990 and signature DJ. I believe with conviction that you will settle on one of these far more happily that any of the others you list. We all have different tastes, set ups, and requirements. Although neither of my suggestions are cheap, in general buying big $ headphones doesnt by any stretch mean it will be the best (for you). There are too many variables for one headphone to do it all IMO. BUT based on your posts i strongly believe you must A/B the SIg DJ and DT990, then A/B the winner against your LCD2 or anything else your tempted by. These threads always end up very long, until the OP actually goes out n tries all these cans. The more cans that get listed, the more opinions are thrown in, the longer the thread. THis isnt a bad thing at all! Just common place by now.
If you dont live near any shops etc etc, order online with a return policy, and dont abuse it.
I'll check NYC to see if there is a place where I can actually listen to them all. Or at least the top ones on my list.