Is it still being debated? I ask because I wondering what's best for the plane or the train. Has to be closed, of course, compact size, and comfortable to wear for long boring hours when everything and everything irritates.
DT1350 has better isolation, and would still be my nomination over the M80s.As for comfort, that varies by user. I could wear mine for days. Other people can't last 5 minutes...
If the V-Moda M80 is under consideration, the XS should replace it. Better isolation and higher sensitivity. Similar sound though the XS has a smoother response. Both have similar distortion in the bass (really can't expect much from a small on-ear) and upper mids. Good comfort and decent isolation if it fits your ears. Minus points because the cups don't swivel on the vertical axis which could cause fitment issues for some, but the super-compactness, durability and case are a big plus for portable use.
The DT1350 is a sonic upgrade over the XS and the M-80, especially in detail extraction and bass extension/quality. But, like the XS, it has held it's value a bit too well. DT1350 also has the chocolate-box Bayer issue too, where you never know what flavor of Whitman's Sampler you pulled until after you try them.
You can get the 1350s dirt-cheap on the used market these days, but I don't know if that should be taken into consideration.
1R are not so good. Did you say 1A is bettar? When did 1A come out? Still a Sony fanboy at heart.
All on ears have pretty crap comfort really (especially if you're a glasses wearer).The XS is definitely an upgrade across the board -................................................