Wondering if I should completely bail on DL. We burned miles on VS last December and we have F tickets LAX-DCA in October (hope there's still a DL) which consumed most of the rest. I wonder if continuing to acrue Skymiles is a losing proposition and perhaps I should start collecting Starwood points.

Will AMEX convert my Skymiles card to a Starwood one? I'd like to keep the same card number if possible. There's no balance so that won't be an issue.

Thanks.