In the last 6 months I've successfully applied for and met spending requirements for the personal AA card (40k miles), biz AA card (50k miles) and Exec AA card (100k miles). Being under the impression that the biz AA and or personal AA cards might be churnable, i applied for them again, but was told it was an offer for first time members only.

What would you recommend next? I thought of maybe going to US Airways cards under the assumption that they would be added to my AA cards at some point soon, but I'm not sure when that is slated to happen.

What would folks recommend? Are US air cards my best bet? When could i reapply successfully for the AA cards i've already had? What else might you suggest?