My wife and I are traveling from NYC to Europe this summer for our 10th anniversary. I spent the past two years amassing various points and miles to book a fantastic trip (flying first class, staying at luxury resorts, living it up for the occasion). We've decided that our next major trip (for our 20th) will be to Japan (Tokyo, Tokyo Disney, etc). I'm aware that it's EXTREMELY early to be thinking about what points 'currencies' might be worth at that point, but based on what people currently know, which programs would people recommend compiling points and miles in for flights to/from Japan and hotels while over there?