I'm a newbie posting this on both Marriott and AA forums to get advice on a dilemma I have. I have had my Citibank AAdvantage card for a long time, paying the $85 annual fee but accumulating signifcant miles (have close to 200,000) on AA through this and other programs. My wife and I just purchased a timeshare through Marriott (about 200,000 points incentive) and signed up for the Marriott Rewards card. So the question is which are more valuable/versatile, AA miles or Marriott Rewards? Should we keep both credit cards or cancel one? Thanks in advance for the advice.

Ed