The general recommendation is that if you're carrying balances then you're not likely to really gain much from rewards.
Better's always a subjective matter so you'd need to give us more info regarding what you're specifically looking to do. The Platinum is a poor card for earning rewards. I find the CSP very useful but I fly United a lot so I can transfer UR points, YMMV.
Endoxa52 wrote:I know, too many cards
That's for you to determine. I have 10 and it's currently the right number for me. There's no X for everyone that defines "too many".
Endoxa52 wrote:I also have a couple cards like Costco Amex, Amex Blue, BofA and Citi…will probably drop the last three - I know, too many cards but I do not use the ones I’m going to close.
Just consider the impact to utilization from closure. See if you can PC to useful cards and/or transfer limits to other cards.