Yea I've previously made the decision to not move to UA, but SQ and TK both have some really attractive aspects to them that are making me wonder what I should do.

I love my SE 100k status, but I really only "need" Star Gold, but making 50k status on AC requires $6,000 spend now, which I'm not likely gonna spend in a calendar year. But, I could make 40,000-50,000 miles even on the 50% crediting pace because I take advantage of sale fares.