I have several BA worldpoints cards and really have not found the value in them. My cards stack like this:
Amex DL Skymiles
Citi AAdvantage
Then I get to where I don't see an incentive to use these cards:
Chase Freedom
AAA Visa by BA
AAA AX by BA
Merrill+ (good for Admirals club, but maybe not anymore)
Citi Chairman (good for concierge and some club access)
Harvard Card by BA
AOPA card by BA
US Airways by Barclays
ETC>>>
But the main thing is what good are BA points?