while they're all great in their own respects, the ones i prefer are:
value - All-Star Music...the lay-out is the absolute best out of the three All-Stars, and the theme is definately my favorite out of the 3.
moderate - Dixie Landings/Riverside...just all around awesome. Hands down, the best food court on property! Again, great lay-out! In my opinion, the best resort on property!
deluxe - tie between Boardwalk and Wilderness Lodge. what's not to love about these two? with Boardwalk, the ultimate goal each time you stay (or at least each time i stay) is to snag a room on the Walk...can't get much cooler than stayin on the Walk, man! and Wilderness Lodge...it's massive, it's western, it has some of the most goregous landscapes out of any resort, and it plays the best music out of any resort.
so, to answer the question, as stated above, imo, Dixie Landings/Riverside is best!