The Ring magazine is rating Inoue as the number 3 pound for pound best. If my memory serves right, Donaire's highest ranking pound for pound was at number 4.
You only missed a bit, Donaire's highest rank P4P was at number 3 on 2011.
Yep the problem is that was a record on 2011, while Inoue ranked at number 3 in this year. I see this fight like Canelo vs GGG where GGG can't won against Canelo (even there's will be a trilogy), so I expect Inoue will win because of his prime, the location and also the judges. Donaire need really dominating in the ring, with his current agility now... there's a gap and wouldn't compete against Inoue.