Between just Air France and AA, you should be covered. I would also add BA since you can not earn AA miles on transatlantic. All in all, you are in good shape with Sky Team (DL, AF and others) and of course One World (AA, BA, etc.) You could also keep America West and fly BA transatlantic and deposit miles with them.

For those accounts with orphan miles (not enough miles to redeem an award), I would suggest you do your laundry at Hilton. Convert them into Hilton points despite losing some of their value, as something is better than nothing. With saying that, you should keep Hilton definitely because of their expansive network and double dipping. I would also look into Radisson as they have more properties through Europe. Earning miles with hotel stays is better than points in Starwood or Hyatt.

Hope this helps. BTW, Air France and BA still give 500 miles per car rental while US carriers give a paltry 50 miles per day.

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"Fly me to the moon and let me earn alot of miles."