Bill,
Fun N Sun does have lots of activities. I do not think they have more than VP. I would not suggest Fun N Sun because their sites are not as nice nor as large as VP and Llano.
As far as pickleball goes both VP and Llano have 4 courts so it is a tie there. For Dancing VP is the winner as it has a huge ballroom with a brand new wood floor.
Other than pickleball and dancing is there something in particular you are looking for? For example, VP is in a fruit orchard and has thousands of citrus trees so you can pick oranges, limes, grapefruit for free. Llano has a golf course.