Reading the forum for a little while now trying to get info before asking for it, but I have the same question with a twist.

I've got about 50k miles with BA but no Tier segmants, thus no status or upgrades, as the company books everything.

Would it be worth getting an AA card, and if so can I transfer my miles?
Would they do status recognition for my AC Elite?
Would BA then recognive the status and allow upgrades or even lounge access!?

Thanks,