I find the All Stars (Music, Movies, Sports) the better On Property deal, exspecially during Off-Season.
I have paid $63 to $79 a night during that time frame. These same rooms cost more during the busier times of year and can go over $100 during Peak Season.
Of the three, i find Music the best.
Usually it will have slightly lower prices on the rooms compared to Movies and Sports. Not always, but i have noticed many times slight differences.
Music also tends to have a much lower concentration of families and kids, as then tend to want to stay at Movies due to the more kid-enticing decor.
All Star Sports tends to pull in the sports groups, school bands, tour groups, cheerleaders, and marathon runners.
Of the three, Music is a win.
Pop and AoA are usually slightly higher in price, likely because they are the newer Value Resorts.
They offer their own benefits for being newer, and AoA has appealing decor and themes, but you pay for this.
If you are like me, and bascially just need a good place to shower and sleep between day to day activities while at WDW, All Star Music is the place to be!