Originally Posted by FlightNurse

The best way to figure out what to go after is list out what you want to do with the miles. For a versatile cards, the CSP and AMex SPG cards you can't go wrong, since you can transfer to many different programs.

I think the holy grail of cards that any collector should have are the Freedom Card, CSP, Amex SPG and Ink Bold. Of course there are more ways to play this game, but those are the cards I think anyone in this game should have the others are gravy.