Since you have only a couple cards, I assume there's a chance you're pretty new to this hobby. If you think you might like the benefits of CSP, and you plan on applying to more than just a few cards in the next year or two, you should get the CSP before you get anything else due to Chase's 5 app rule for UR earning cards. Though Chase has less transfer options, they are good options - especially United to use for free stopover at hub airports, which United's Star Alliance has a handful of in Asia.

I never saw too much value in the Delta CCs or program...only in the signup bonuses when they go up to 50k. If you plan to definitely use Delta for a majority of your travels then it makes sense, but with no award chart and low value points, it's a crapshoot how much any flight you look for may cost though.