Same boat

Lots of threads about this but the answer is it depends on your goals.

Miles? The "best" I read about is the Wynn visa because you can convert to Delta SM's for $1:0.8, so you are not getting $1:1 but it is the closest I could find.

Hotels is my Visa go-to --- I am using my Hilton Visa and using that for most my auto pays since they are giving $1:6 for categories that fit most my autopays.

I use Marriott visa for other items.

I use all the branded cards because when I stay on their properties and use their cards you get very good bonuses.

There are some good threads for people who run for cash back rewards. Not my need but some look attractive.

But, it all depends on your goals/habits to chase the golden points.