Originally Posted by
notquiteaff
You don’t seem to say anything about how you use the points you earn. Transfers to Delta and United or some of their partner airlines?
I play in both currency schemes. A lot more charges go onto my CSR due to the better earnings structure, but some airline purchases go to the Plat for 5X and diversification. Both cards (and especially the companion cards I have on the Chase side - CFU and Ink Cash) are currently worthwhile having for me and my needs. If I decided to simplify, I would probably axe the Plat.
Apologies - wasn't entirely clear. The points get banked on both sides and typically held until transferred to the airline for international J flights. I haven't had occasion to look more into partner/alliance transfers and use. All things being equal, I lean towards Delta, but I've also flown more United than Delta in the last year, including my last international trip having been on United Polaris, due to convenience.