D5000 = if you want to get good cans for bass punch, but have to "sacrifice" the enjoyment of midrange area, it's a bit recessed, and for me, it's hard to enjoy vocal-songs (acoustic, pop, vocal jazz) with them.
W1000 = it's what I called as "vocal bloated". The vocal is really full, lush, and some people will feel it's bothersome, because instrument will get covered by vocal, another some people will fall in love with this characteristic though (ex: for songs with strong vocal). At the weak side, W1000 suffer for bass teritory, its small, and don't offering really good sub-bass, also, when I tried it at SS amp, I feel the treble area is weird too, it's like "thin". but when combine with warm and lush tube amp, the treble can become "right" to adding clarity combine with lush vocal.
Grado RS-Series
Fast, forward, lot of energy for guitar and rock songs, lack of wide staging. It's really good cans for some genre like metal/rock/acoustic (yeah I like acoustic songs through Grado), but when we talk another genre like classical or jazz, you can look elsewhere.
three of them sound so different for me, you just can't say "hey I have 600 bucks, which one is the best among them?"