audio-technica has a broad portfolio of headphones. 90% of them are uninteresting to me. But those 90% are irrelevant much like 90% of Sennheiser, 90% of AKG, 95% of Beyer are irrelevant to me.
I think the only Senn cans I'd be interested in owning again are the HD600. I can't say I'd buy another Orpheus as it really wasn't my sound. K 701 is utterly unteresting to me, though it should be obvious I enjoy the K 1000. DT770 has a nice spot as a good, affordable, closed can, but I've never felt compelled to own one, and doubt I would, much less other Beyer cans.
But I would say if I were offered the W5000 and HA5000, I certainly would take it. It does do what it does very well, and I very much enjoy its imaging and sense of space. Same with the L3000 (a can I somewhat regret having sold...)
Stax is interesting. I like the Omega 2's out of the right system. But other than that, I far prefer the discontinued ones. But again, I don't think the W5000 in the right setup is that embarassed relative to the SR-Lambdas or Lambda Pros in the right setup. I'm uninterested in the SR-404s, much less 303 or 202.
I dunno. I think there are interesting cans from each of the manufacturers, and tons of uninteresting ones. Why do you feel the need to single out audio-technica particularly?
Best regards,
-Jason