Greetings FT.

Poking around SPG, I learned of their Nights and Flights redemption option. Essentially, 70k SPG gets you 5 nights in a cat4 (valued at 40k SPG) and 50k miles on any airline with which they have a 1:1 exchange ratio. This essentially converts to 30k SPG = 50k airline miles. Using the regular transfer method and their special bonus, these 1:1 airlines actually redeem at 1:1.25 (if you transfer in 20k increments). However, 1:1.25 is dwarfed by 1:1.66.

So I'm wondering (without spending the ages it would take to design comparable award tickets), if anyone has a feeling for the value of one (or, say, 50k) native points on each of the following airline's programs.

ANA vs. Asiana vs. Lufthansa vs. Singapore vs. Thai vs. US Airways

Appreciate your thoughts! -xj