On the HE-500 I find the Ori to be a very poor match (to me). Increase in the bass, which is not needed, just increases mud in the bass; tamps down on the treble in the lower ranges below where the 500 needs help - want EQ, buy EQ. But the worst thing is the postage stamp sized soundstage. Assuming users have the rear screen off, the Ether Angled will routinely give you 140 degree wide stage on audiophile quality recordings, the Ori by comparison seems to be about 40 degrees. I bought an Ori about 4 years ago and didn't like it, then to be sure I was correct I bought one about 12-14 months ago and tested it quite a bit. Hated it worse.
More fans of the 500, 600, and 6 come out strong for the Ether Angled than the Ori. The 500 is a closed case IMO after 14 pad tests. On the 6* it could be the best, or second best, I haven't done enough testing yet. But so far the Ether is the best I've heard on them.