I think the presence of easier connections between T1 and T2 is also a factor in AC's choice to consolidate its operations in these two (albeit older) terminals. I think T3 is overall a nicer terminal, but given its insufficient capacity given the size of AC and its remote location relative to the other terminals, too bad...
FewMiles..
------------------
FlyerTalkers' Resources on the Web:
http://home.webflyer.com/fewmiles/
Unofficial Guide to AAdvantage:
http://home.webflyer.com/fewmiles/AA/
Unofficial
oneworld Info Desk:
http://home.webflyer.com/fewmiles/oneworld/