[Johnny Jumper]

I'm looking to upgrade from my Shure 215 and Creative Aurvana Live!  I also own Sennheiser PX100 I and PX 200.  I want some portability (I will use them in my cubicle) but I'm wanting excellent sound, especially acoustic and vocal.  I'm not a bass-head and I'm not into electronica. I do want some sound stage, though.
 
Are Grado's too uncomfortable and leaky?  Are Beyerdynamic T51p too warm?  Are HD25-1 II too soft?
 
So many reviews...  Anyone have experience with these contenders?
 
HELP!