Using a 750/850 in an ERJ is risky business; the person you're flying with will most likely murder you before the first five minutes are up. If you manage to survive those initial five minutes, not to worry, you'll die of an aneurysm shortly thereafter due to the combined lack of ANR and the screaming mic wind noise feeding right back into your ear which sounds like the shrills of hundreds of women after Oprah announces she's giving something away.
In all seriousness, I've used a Bose X and I'll swear up and down by it all day long. Bose make awful speakers, but their headsets and customer service are equally awesome.