I use a pair of Senheiser HME 100,s. I have used them in a variety of aircraft (including some very noisy ones) and found them to be excellent. Qualities are :- good acoustics, light weight, comfortable and best of all relatively inexpensive. The only gripe I do have is that the mic socks tend to go west with amazing regularity. A dab of silicone adhesive on the next lot of replacement spongy bitsI think.