L.
I returned to work when my first was 10 months old and hired a nanny. I highly recommend going the nanny route. It does cost more, but you are providing your child with one on one care similar to that you would do yourself.
Also, my child was a very happy child and I worried that at daycare he would be ignored for more demanding children.
Having at in-home nanny also eliminates over exposure to germs, and you can leave a child with a cold with the nanny, not at daycare, so your days at work aren't cut into and you can use your holidays for quality time with your child.
Also, with a nanny you can have the childcare decisions more because you tell them the policies you want, not the ones that are standard at the daycare.
However, you have to do what is most comfortable for you and your family.