Chase earns 2.25% on EDS and 4.5% on travel and dining. Amex can earn better if there is a rebate but only with the business cards to my understanding. I currently have a portfolio of personal cards. So my question is, to be able to get a biz Centurion card when offered, do I have to have all biz cards? Or does Centurion card follow Platinum card? Or do I get to pick when they offer Centruion?

BTW, I would get additional benefit if I have Centurion card with 50% rebate, after factoring in annual fee, as compared to my Chase setup + Platinum.