Sony MDR-Z7s for the win. Aren't they just marvelous? That bass really is a thing of beauty. Technically not as good as Nighthawk's bass, that one goes deeper, hits a bit harder and is more linear. But Z7s bass has that analogue late 60's and 70's type of bass, with a fat belly and with a different kind of bloom as NightHawk's.
I have come to the conclusion that I don't have a favorite nor a best pair of headphones. The Z7s are just as excellent as my NightHawks, Night Owls, Avantone Planars, Fidelio X3 and HD650s. I love all my headphones, but for different reasons.
Unfortunately the ear pads are starting to flake a bit, but luckily I have two sets of spare ear pads, not the original of Sony, but both made of genuine leather. The size, depth and thickness is almost identical to the original pads, so I am confident they will work. Not looking forward to the unscrewing of those tiny screws that secure the pads though, why did Sony make it so unnecessarily hard to replace those damn ear pads?