You've got it correct that Mountain Villas are the newest and Resort Villas are the oldest and are all 2-BR. There are actually three sections - you're missing Villas on the Green which are those built in the middle. Some years back, the Resort Villas were all nicely refurbished (I think they did them all - I know they were all slated to be done). I think the Villas on the Green were all supposed to be done, as well, but I'm not sure of the status on those. Regardless of which of the three you stay in, you have full access to the entire property which includes 5 recreation centers all of which have at least one pool and one jacuzzi. One is an adults-only pool and is connected to the fitness center. The Mountain Springs recreation center (within the Mountain Villas section) has a zero-entry pool, a water slide (separate from pool), and a splash area. The Boulder Springs recreation center (in the Villas on the Greens section) also has two separate pools, another water slide, and a splash area. It's also connected to a small playground with a couple slides. This one tends to be our favorite recreation center and the one our kid enjoyed most starting around 18 months of age (now 10 and it's still our preferred one).