I'm a fan of using miles with Singapore Airlines for Asian travel. One way biz is roughly 125K miles. Miles expire in 3 years.
There is a limited window of moving points to Hawaiian Airlines and from Hawaiian to Alaska. I have found redemption on Condor a current sweet spot. It takes 70K miles if booking a single flight on Condor; adding connecting flights within Europe bumps it to 110K. Long may it last but who knows. This window will close roughly in July. I've already moved a few hundred K from AMEX to Hawaiian but may move more in the next month.