I guess what i meant was are these a real step above my MDR-V6's
It's really a preferential decision at this point. The MDR V6's have an extremely flat FR for a headphone. When I got to liten to some, I'd say they weren't very "musical", but they were great for critical listening, etc. Other A-T HP's, like my ATH-Ad900, and the AD700 are very comfortable ,nad have great soundstage and "instrument separation" These were the biggest things I noticed when I first got mine in 2008-2009. By contrast, the ATH-M50s are characterized by better bass response than the typically lean FR of the AD700/900/etc.
I've only heard them once, but I liked the M50s, Much better than certain other brands' offerings.