With a little experience of both- I had a nanny growing up, and had my daughter in daycare for a few months. She loved daycare, but she was always sick- ear infections, coughs, and you name it. Which meant my husband and I were always sick. While I appreciate that opportunity for her to see other kids etc, I can definitely say I loved having a nanny during my own childhood and wish I had that option for my kids. To this day she's still a close friend and I consider her family. But, I'm a stay at home mom now so neither are options on the table at the moment.