I have a Diners Club card with ~150,000 points on it. I don't use the card much anymore and would like to get rid of it sometime soon. Currently if I transfer them to BA I can get a 50% bonus on the transfer. I can also transfer them on a 1-1 basis to Aeroplan. I don't have status on either airline. I'm more familiar with Star Alliance airlines than OneWorld. From what I've seen Aeroplan is pretty generous with its reward table (80K business ticket and 100K for first class from the US to parts of Europe). BA seems to have more fees and charges although being able to buy a WT+ ticket and using miles (25K) to upgrade to business (or whatever they call it) seems like a good deal. So 150,000 miles on Aeroplan or 225,000 miles on BA? Obviously I could try waiting and see what other offers Diners Club will have later in the year.