Can u take an xbox one on the plane?

You may take it just be prepared to have it out and ready to be checked at TSA checkpoint. Remove any media such as cd/dvd/ storage from unit and pack it in a carry on bag. Hope this helps.

Yes

No problem. It will be scrutinized as all electonics are when passing thru security. Suggest you remove all media.

Yeah

Yes, but they will have you take it out of your bags and treat it as if it was a laptop

Yeppers