The American-USAirways alliance is the only one to offer pooling of miles. The other alliances have not announced pooling of miles. The American-USAirways alliance was given a thumbs up by InsideFlyer magazine in this months magazine, although Randy "came out" against the alliances a month ago.

As a primarily United flier I agree that the United-Delta alliances does not seem to offer anything to me. I think that this one could benefit Delta members but be detrimental to United members. I have posted on this in the United thread.