Thanks for your feedback once again rusta, you've been really helpful when I've asked for your opinion in other threads.
I've narrowed my choices down to those 3, and I've decided to get the t1 for the following reasons. I ruled out the HD 800 because its a little over my budget even for a used pair. And like you've pointed out before, the LCD, though boasting outstanding sonic qualities, falls short in terms of comfort and ergonomics. The build quality of the t1 is superb, and it's relatively light compared to the LCDs. I've read several reviews and most if not all praised the t1 for comfort and sonics. The only drawback in terms of ergonomic IMO is the non removable cable. But that shouldn't be much of an issue unless it breaks and I'm not also into custom cables.
That said, I can't wait to listen to Taylor swift whine about her exes and break ups with the t1