If you're thinking about doing preschool, are you looking into a private day program, or your local public school?
My son has autism, so he goes to public school as part of a specialized program. My daughter is getting closer to preschool age, and I'm thinking I'll send her to the same school. I love my son's teachers. He's in an integrated program so there are typical peers. My daughter would probably be a good typical peer because she doesn't realize that my son isn't just like everybody else.
our public school system is going through a lot of changes right now - not all great. while the state academic ranking has improved, there have been closings and a lot of shuffling around due to population decreasing in the area and it sounds like more changes are afoot in the near future. right now our plan is to check out our three main pre-school options (one public, two private) and go from there. based solely on feedback from parents of some of the kids our son has met in playgroup, however, we're leaning toward one of the private options for next fall.
Depending on where you live, public school preschool teachers typically have more education than private school teachers. I live in California and teach a special education preschool class for the local school district. I have a B.A. as well as 12 units of typical child development plus a level 2 clear professional teaching credential in early childhood special education. Most private preschool teachers just have 12 units of typical child development. That being said, some people are just born to teach and you can find an awesome preschool teacher at a private school as much as a public school. If you like your son's teacher than I would go with that. God bless!