Hi, Stephanie! We stayed at Riverside for our honeymoon. It was great. There was many lovely paths to stroll, the horsedrawn carriage (though we didn't opt to do that), a poolside bar, and most fun of all, a fun little guy who does a jazz/sing-a-long show from like 7 to midnight on most nights. He was great. I can't remember his name (it might be in my trippie?), but he was really great at getting the crowd pumped without being overly cheesy.
I've never stayed at the other three, but we did drive them all and felt that Riverside was most "us." Maybe if you have time you could drive over and have a look? And send pics to DF? GL deciding!