Nusa Dua is the high-end enclave of Bali, hence many security checkpoints. There you'll find the biggest hotel complexes. The beach isn't that great, but you won't have plenty of crowds in your way.
Bali Collection is a sprawling commercial center.
Ayodhya, formerly the Bali Hilton, is one of the largest resorts in Nusa Dua. We enjoyed a light snack and watched as a bird that appeared to be wearing a dotted scarf around it neck walked quickly near our area. Cute.