Cant really compare AA to either UA or DL but
AA for the lounges.. especially outside of the US
SWU for me , in use 10/10 on any fare, which is a nice touch
Domestic for me.. is been 9/10.. and EXP do not need certs etc for domestic upgrades
no issues with the EXP call lines.. getting thru quick, even with the mess the airlines are in
OW partners.. they fly were I need to go, and BA will block seats for EXP.
I only wish AA would fly to more international cities in Asia ...
ok time to get a coffee refill