I have not tried a ton of headphones, and I have not tried the very expensive ones (things get even more expensive than keyboards), but I have tried a decent amount over the years.
When it comes to bang for buck, and affordable performance my choices are:
-AKG K550 for a closed headphone. Manages to have a good soundstage and has a very "open headphone sound", not quite as boxed in, if that makes any sense. Like them better than some much more expensive closed headphones that I tried.
More
-Audiotechnica ad700 for an open headphone. This headphone lack a bit of oomph (sorry for the lack of technical terms) but gives a very nice representation of depth and location of sound.
More
If you have a small budget, I found the Sennheiser HD 518 pretty great value for money.
One headphone that I do not use anymore, but that has literally lasted me over a DECADE is the Sony MDR-V6. You can still buy it, and I think they did not even change the design. If good sound but most of all durability is what you are after, then I can vouch for these. The only thing you might want to replace after 5 years or so are the earcups (they are sold separately).
More
Though there are quite a few brands that I have been hearing great things about, that I have not had the opportunity to try.