Hi all! Im not sure if this is the best place to post this, but I figure I would ask. I have two large purchases coming up and I would like to know the best option to maximize my mileage points and rewards to capitilize on the amount I would otherwise charge to my debit card. I am paying off my car (I owe about 10k on it) and I have a dental procedure coming up (costing around 5k). Which card would be best for me to use for these purchases?

Also, there is one caveat. My car loan is with Capital One and they do not allow credit card payments directly on their website. Any ideas on how I can get around this?

If it helps these are the cards I currently have:

SW- Business Premier
SW- Plus
AE- Premier Rewards Gold
US AW- Dividend Miles Premier World
AA- Platinum Select
AE- Delta Gold