If you are a long term reader of this blog, you might remember that I got some Bose noise canceling headphones ($300) last year I think for my birthday, but they were stolen on our cruise in October. I really liked them.
I went out and got a pair of Koss ($70) replacements. And they work pretty well for the price. But they don't travel well. The Bose aren't great for travel either.
So ... I am trying out Sony's MDR-NC11s (~$150, 30-day return policy at Sony Stores).
They were pretty good on the last trip. I did figure out one thing that my left ear is slightly bigger than my right ear, so I have a large bud on the left hand side and a medium bud on the right hand side.
I did notice though that on the smaller Brasilia Emb120 prop plane that they didn't work as well as on a "big" jet.
In my lab at work where there is a lot of background white noise from fans and such, they work pretty well ... especially if you are playing music or podcasts through the headphones.