But the Jade has no soundstage depth, and a bunch of other problems. I like the HE60 so no argument there.
Airbow SR-SC, no comment since I haven't heard it, but I loath the SR-404
Let me pick through your list
Jade, RS-1, K1000, HP-2, all of those headphones have good treble IMO. Not bright if matched in a good system. The others I agree with you or haven't owned/borrowed.