T5p.2 now has some serious competition, the new ART series ATH-A2000Z
A2kZ can't match T5p 2nd gen soundstage expansion or treble airiness, but A2kZ bass is more extended, noticeably a little more quantity (especially sub-bass), and more articulate and tighter in comparison, and upper mids/treble overall are as detailed and revealing but AT sounds more natural and a little smoother in comparison to Beyer. Another T5p.2 advantage is removable cables, while A2kZ is permanently attached. Also, A2kZ has a better isolation and no sound leakage, in addition to $650 vs $1.1k price tag. Another thing, T5p.2 is more efficient and not as picky about the source, while A2kZ scales up when amped (prefer it with my Micro iDSD).
No clear winner, each one has its pros and cons, but they are definitely in a similar sound category.