I'm not too worried about bulkiness in transit. and only over-ear headphones, no IEMs. I really appreciate your recommendations! I am willing to spend more than 400 dollars on headphones if that in any way changes or adds to your list.

I'm looking for a pair of headphones   currently, I have the Bose QC15 headphones but I've had them for about four years, and bought them because I was so amazed by the noise canceling feature.   Anyway, now they're really worn. What I'm looking for is the best possible pair of...