I actually looked through the forums first (last 6 months anyway), but they all seem to be very specific:
Best In Ear Headphones
http://www.flyertalk.com/forum/trave...earphones.html
Is the Bose QuietComfort 15 good:
http://www.flyertalk.com/forum/trave...mfort-2-a.html
Sennheiser PXC 450 discussion:
http://www.flyertalk.com/forum/trave...ight=headphone
A discussion of interference with noise-canceling headphones:
http://www.flyertalk.com/forum/trave...ight=headphone
etc,etc
But I couldn't find any threads about recommendation about the best ones to purchase. However if you know of any, please let me know.