Westin
We went to Bali for CNY with our 2 year old. The Westin in Nusa Dua was pretty family friendly and there were lots of kids. Also, the rooms were quite nice since they have been recently renovated.
My colleague stayed at Club Med who said it was great bc the kids club starts at age 2. However, when I saw CM, I didnt think that the resort looked very appealing for adults but the children definitely seemed to enjoy it.