Wirelessly posted (BlackBerry8530/5.0.0.601 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)
"but with the recent changes to the BA program, is it advisable to go for AA now?"
It really depends on what routes you typically redeem for. For short-haul redemptions within North America (including to BDA and the Caribbean), the new BAEC redemption scheme is better than AA's.