Both are excellent choices. The new building closest to the Atrium is the one known as the Villas of Simpson Bay. The remainder of the resort are not known as the villas and are the condos which have recently been redone, but are the original construction. The Atrium is a great resort and is built to withstand hurricanes. It has been recently renovated and is close to the beach. Also Buccaneer Beach Bar offers chair service on the Atrium beach which is nice. All units at the Villas have a water view if that is important to you. I have stayed at both resorts and enjoyed both. You can't go wrong with eithe choice. Enjoy your trip!