I doubt it's as accurate, from a monitoring use standpoint. However, it might have a more pleasing sound? I don't know.
The Sony MDR-CD900ST is my favorite for general purpose portable listening use. It has a slightly enhanced lower mid/low range (warmth) and a very smooth midband(flat) and a rolled off treble range(many might not like this characteristic). Relative to my perception, it is one of the most realistic sounding headphones I know of for classical music of all types(opera, chamber, symphony, solo), even compared to super expensive units like the Sennheiser HE90(Orpheus). Consider that I judge as accurately as possible, side by side, using purist recordings, and I have regular experience as an audience member at non-amplified events. The treble roll off is not ideal for most pop/rock music, though.
-Chris