Not that I have any children of my own, but I had a great daycare experience. My parents put me into daycare when I was about 2 1/2, and I still remember it! We lived in Miami at the time, and I stayed with about 5 other kids with this fantastic Cuban woman. She used to make us rice, beans, plantains...yum...
In fact, I started speaking Spanish at home to confuse my parents.
From my own experience, as well as the experience of my half-brother (he's 5 now), I would say that a private home is best. Your son will probably get more attention that way, too. I know it's hard to find a good child care provider, but that seems like the best way to go.
If all else fails, maybe Rudey can help you out.