SWA guy, as mentioned before we all wear headsets so no real dog in the fight. Have Bose and DC Pro-X. Wear the DC in the guppy and it's more than adequate ANR for that. I find it lighter, more comfortable, easier to transport, and more sunglass friendly than the Bose. Wear the Bose at my side job flying Hercs. Better noise cancelling in a high nose environment, haven't tried the DC but probably wouldn't use them there. For $400 less the DC are worth a look if you're OK with the on ear fit vs the over ear of the Bose. I think DC came out with an over the ear model too, haven't tried those.