<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Spiff:
I'll take my chances on AA and US, thanks very much. 
Hell, I'd rather take my chances on Aeroflot than give Gordon Bethune another dime for his crummy coach product, unusuable miles and an awful international upgrade policy.</font>
The only reason I flew CO once this year was I flew on a $300 Travel credit & the ticket ended up being free. At least if I didn't get the upgrade on AA mainline, I would get MRTC.
As for intl, I can upgrade on AA on nearly any published fare with miles. (or VIP's if I had one). Not so with CO.
With US, I can upgrade to Europe with most fares (V,L excluded). I can get a sub $400 fare (for October travel) from LAX to London with US on a Q fare basis & upgrade with my US transatlatic upgrades. (even low & mid tier US flyers get the transatlantic upgrades--very nice!

). No HoKeY hassles, no lottery, etc on intl CO upgrading!
Even on UA, when I upgrade, I would rather sit in 15 A/B on a 747 going to LAX-ORD or maybe LAX-IAD. It sures beats a 737 going to EWR on CO.