I've been inclined to develop a spreadsheet that describes each airline, who their partners are, who their alliance members are, common compliments about that airline, common complaints, and best CC offers (not only from direct avenues, but for other cards like SPG, CSP, etc) for quick mileage gain among the most banks (b/c we all can't qualify for 6 Chase cards). Before going through this, I'm wondering if something similar has been done already or not? I think if I saw all the partnerships and cc offers graphically, it would make much more sense to me. It would also help with card churning models. Obviously, the card part would be rather fluid, but it could be updated at churn time to reflect the most up-to-date offers for which to choose from.