As a professional sound engineer I am flabergasted that Bose has a market within aviation.
In the audio comunity Sennheiser is considered a mid-level company regarding audio quality, with the corresponding mid-level price tag.
Bose is considered at the very low-end regarding audio quality, while retaining a high end price tag.
They have clever marketing, not clever products.
So how could Bose be prefered for your application? Audio quality (how well can one understand what is being said) is with no doubt better with the Sennheiser, so is Bose more comfortable to wear or what?
Just curious.