I've got
Bose X and
Clarity Aloft headsets and find the latter more comfortable, with the sound quality at least as good. However, their earplugs are a bit fiddly to fit, so I wouldn't recommend them for sharing between passengers. For that purpose, I've just bought a
DC X11 headset, which is the same weight as the Bose X, but squeezes my skull even less, and is much cheaper. It also operates in stereo, with a separate jack for an MP3 player.
I reckon that the Bose X is overrated, and its main appeal is its looks.