I still like FF7's NA cover. The washed out render of Cloud (facing away, notably) with the Shinra tower looming is a very effective cover. I agree on all the others, however. And why the hell does FF9's cover leave out three of the characters? You could probably make the argument that Zidane, Garnet, Vivi, and Steiner are the "mainest" of hte main characters, but then what the hell is Amarant doing there?
As for the numbering...I don't know if it was about dumbing down so much as just trying to make it look a bit more cohesive. But it was a bit shortsighted/pessimistic to assume that the others would never be released here. I still have no idea why they then decided to keep VII's number as it was. I'm glad, it's just an odd point to change your mind at, haha.