I think I liked WL best when I first visiting last Spring. December it just wasn't as charming to me. Yeah, I know I was supposed to be wowwed by the decorations but I think I was in decoration overkill mode by the time I visited. All the resorts were so pretty and special.
I think I'd go for SSR as most scenic though. (Discounting OKW since I've yet to see it in person.) Lots of space to walk around and watch the swans or other wildlife. It has more of a spa feeling.
WL is pretty but compact. Of course I couldn't do the woodsy bike trail in my powerchair. Too much sand. That may make it more scenic for non-wheelies.