Thanks!! Exactly what I was looking for.

Between the three airlines, are they all about the same for point earning and redeeming ratios? For example, let's say roughly 10 flights gets a free flight on Southwest, is that about the same on Delta and United? Do any one out of those three carriers outshine the others?

I'm really confused on the new UA point structure

Would probably redeem to see family in Austin, TX (or Hawaii, ha).