I have a pair of lightspeeds. They fell apart just after takeoff one day. Literally. The plastic headband simply failed while sitting on my head. I had a roll of electrical tape in my flight suit, and taped it back together to finish the mission. I overnighted it to lightspeed, and they overnighted it back, repaired.
They were comfortable, but they couldn't keep up with the noise when at full power on takeoff. The rest of the time they were okay, however.
I never had that problem with Bose.