Here's the situation: I will have 55k OnePass miles (maybe 75k); 91K Amex MR; and 23.4K US Air miles.

Given CO's move to *A, I'm trying to figure out the best combination of miles and points to use. If I convert my MR to OnePass miles, should I wait for CO to join *A to redeem an award (I'm guessing Biz to Asia) or take my chances with SkyTeam?

I don't know how availability on SkyTeam is, but I figure some of you gurus would be able to shed some light on the *best* use of miles.