Ask HN: Best over-ear headphones 2015

So this question has been discussed multiple times in many different forums. I've read tons of (often conflicting) advice and recommendations and I'm still none the wiser. I appreciate this is a subjective topic, and so no exhaustive ranking will ever exist. That said I know many of you will relate to my use case: I work as a software engineer in a shared office space, I want to listen to music whilst I work, I want some level of screening from background noise, be it a byproduct of good audio itself, or some form of passive/active noise canceling. Until recently I had a pair of Bose QC15s which were revolutionary to me when I first tried them (likely because I'd never spent more than $50 on headphones). I would be tempted to go ahead and get the updated QC25 and think nothing more of it. I have read however that whilst the noise canceling is by far the best, some amount of audio quality is compromised as a result. I'm now leaning toward something more refined, that isn't making such compromise. My problem is cutting down the myriad of options to a list I can actually attempt to compare myself. As such I'd love to try and get some consensus on the top five options (at least in terms of popularity) for the scenario I describe.

Thank you all in advance!