Can't go wrong either way. Sunbreeze closer to town, but Banana Beach has free breakfast. If you were planning on a golf cart anyway, Banana Beach rocks -- prefer walking everywhere? Sunbreeze. Cooking in your own room? Banana Beach. My preference is Sunbreeze with proximity to everything in town, but you may be different and a lot of boarders here love Banana Beach. It isn't that much further really.
Don't overthink -- you'll love either one.