I was hoping to A/B compare them but was unable to do so. From memory the Hp700 is more V shaped in signature with stronger mid bass and less sub-bass. The mids of the Hp700 will likely seem more distant than the 1R, the treble might be a bit more agressive though. Comfort wise the 1R wins hands down as well portability wise. Sound stage and positioning is hard to remember but I think the 1R wins there to. But the HP700 may be a better can if you want it's signature style and it's more visceral nature due to that v shaped signature.
But I got rid of the HP700 mainly due to lack of comfort and lack of portability which the 1R has in spades so it's easy to see where I stand.
Thank you for your information dweaver.
So the Sony have more forwarded mid. I fine the mid of the HP700 to be quite forward, one thing I really appreciate compare to the D5000 and yes the mid bass is punchy and tight but sub bass not as much. Would you say the Sony mid are forward like Grado?