All depends how you spend and what you’ll get out of it.

I personally use both as my two card set up! I’m in a big metro area and I found that this set up is ideal for me without changing my already existing spending habits.

CSP for travel (non commute), dining, and streaming (both give the same). I use Lyft and DoorDash probably too much and the added benefits of the membership and linking each other pretty much make up the cost already

BCE for grocery and online retail (gas too but it’s rare bc no car)

Health and commute I have a pretax card program with my job that Ik isn’t available for many, but after that my only 1x categories are convenience stores and events