Originally Posted by
csutter
The OP would also also get Avios though (double Avios as a BA Silver), which can be quite decent value for domestic US flights!
and would come in very handy for RFS redemptions which aren't available with AA miles. Get a BA Amex card and a whole new world of opportunities opens up.
Personally I'd go for it especially as, dependent upon membership year, the BA status and soft landing can give status for much, much longer than a year.