Lots of opinions here. I think you should try them both first. I've done that, and for me, comfort is the most important consideration. Nothing I've tried is as good as the Bose, including the Zulu. It's a personal preferrence thing. They both cancel noise. Is one better than this than the other?? Probably, but for me, they are all pretty good. Comfort rules, and for me, the Bose is the best. If you need two, maybe you should buy one of each so that you can get experience with both and then delegate the one you don't like as well for your passenger. I have had panel powered Bose (actually the same two headsets - I didn't sell them with the RV-6), and have never had any noise problems and I don't ever have to worry about running out of or buying batteries. I like that. Can't use them on someone else's airplane, but that makes them less 'thief-worthy'. Good luck.