Pro: At the All Star you can use all three All Star resorts pools...gives you 6 pools to choose from with a "little" bit of a walk. - Providing one is not closed for refurb as ASSports SurfBoard Bay will be in Sept.
Pro: All Star Music has afternoon and evening programs for kids
Con: None really except Bus issues...sharing with all three resorts as opposed to POP which is by itself and thus less people.
Generally A Value is a Value, it just depends on what type of theming you like.