Here is the list of airlines into whose mileage schemes you can move AMEX points:

http://www.membershiprewards.com/cat...lAirlines&No=0

Yes, ANA is one of the participants. However, be cautious about moving points there as there is a three year expiration. In other words, as of the date you move points in, you have three years to redeem them. It's much more typical for programs to keep extending the life of miles as you have activity in the program. If you have specific plans for your awards, particularly if you want ANA awards, then this program would be fine.

You can also move points into the Air Canada program. I do not participate in that program, but some knowledgeable members, such as gleff, are great fans of the ease of redemption from it.

UA does not participate in AMEX Membership Rewards.

When you are searching for award availability on Star Alliance carriers, the ANA availability tool is essential. I know you are new to redemptions, so this will seem a bit overwhelming at first. Here is an excellent tutorial on how to use it:

bmi FAQ No.4: Redemptions - Finding Award seats : the ANA online tool masterclass