I have a few flights with CO in the coming weeks and am debating whether book those miles with AE or CO.

If I am flying Air NZ and booking to a OnePass account, can I still get lounge access with my Elite card? Not sure how that works, but I wanted to check as that would probably preclude me from booking with CO.

Also, if I am flying YHZ-EWR with my onepass number on the ticket, will they offer priority boarding/lounge access as *G?