I used to be with KLM from before the AF merger and loved it but as I hated the merger and the dilution of the FB product I switched in 2008 to Aeroplan, although living in Sweden, and have no status there. I haven't flown as much as intended but that may change - soon.

Air Canada have increased their ticket costs. KLM still have great deals and Delta SkyMiles earns 100% even on the deeply discounted tickets. So I'm thinking of returning to flying KLM. The little hops I do around europe and the few flights across the continent would get me in to status.

But seriously, what is appealing to you guys about the Delta SkyMiles program? I have a skymiles membership and card so I'm thinking why not use it?