You're definitely well-positioned to get some CC bonuses. At this point, I'd suggest applying for all of these on the same day:
If you apply on the same day, none of the requests will see the other requests, so you should be good to go! Always apply for cards in batches every 3-6 months. If you get approved for all of the above (and I think you will), then you would have 150K AA and 125K CO. That's enough for a business class ticket to Europe on Star Alliance (with Continental miles). With AA miles 2.5 trips in domestic First to Cancun or 6 off-peak coach tickets to Cancun or 4+ on-peak coach trips to Cancun.