Quick Background: I've already received the Chase CO 50K deal, and the Chase Marriott Rewards 50K deal and am now trying to decide between the Sapphire 50K deal and the UA 50K deal (only available to UA/CO elites, as I understand it).

I was leaning toward the UA card, thinking that it could get merged with the CO card in the near future, and then I might lose eligibility for a new card due to my CO card "turning into" a UA card. However, I know people are pretty excited about the Sapphire offer right now as well. I AM planning to do both - but since neither one has an obvious expiration, just trying to figure out which should come first, and which one to wait 30 days for.

Any strong opinions, or is it basically a wash?