I have used the Shure for over two years and have used the Sony's for one. Obviously Shure wins. Using them as I type the Shures are more clear and an infinitely better sound stage. Another advantage being I can wear the Shure for more than five minutes without my ears physically hurting.
That said, my Shure are getting old and at times cutting out. I purchased my XBA-1 as a casual replacement for $80 a while ago and am not satisfied.
I hope that if anyone still cross shops these two units they can find my review, but I'm more interested to see if anyone on here has a nice recommendation for a SE215 replacement.