Originally Posted by
guv1976
Note that AA partners AS and B6 both fly LAX-EWR, and B6 also flies LAX-JFK. Status on AA would provide benefits on both of those carriers.
This is true, but status always confers the most benefits with the airline that you earn it with. I'm not familiar with the terms of the AA-B6 alliance, but my impression of the AA-AS relationship was that the status benefits were merely what you got from oneworld ruby/sapphire/emerald.