I fly *A almost exclusively, but have to fly AF for two legs of a flight. I won't be flying ST much more, but was looking for a an airline to deposit these miles that had a decent partner award chart and didn't expire. Any suggestions on ST? My idea is potentially Korean Air because they're transfer partners w/ Chase. But Alaska sounds like a possibility since they have an interesting partner group and supposedly have decent 'Buy Miles' promotions from time to time.
Anybody have any good ideas?

I can't find the fare class on my current flight, but the AF website says I will earn 1200 miles RT, for a flight that is actually over 5000. Exactly why I want a different partner to deposit these miles to.