I don't think there's any one perfect college out there. At most places it will probably be the department you study in that will determine how well suited it is. I think it kind of depends what you're looking for. It also depends on what you are looking to find or avoid, and how academically proficient you are. I don't know that much about the colleges in your area, I mainly know about places on the West Coast and the bigger-name technical schools back east.
If you want a small place because you're worried about having to keep track of lots of people, then any small liberal arts college should be better than a state university. If the most important factor is a chance to meet others like you, that's a somewhat different story. I don't know what major you're looking to go into, but if it's some kind of technology I would recommend MIT or Caltech, since I suspect that these tend to be "Aspie magnets" (though Caltech, being rather small, is very hard to get into--I had plenty of academic success in high school and was not accepted there as an undergrad).
All in all, though, I think the most important thing is that the college have a good program in whatever area you're really interested in. I'm applying to grad schools right now and that's what I'm going by. The only other (lesser) concern I have is that I'd rather not be at a school where everyone's in math or science, since then I probably won't meet other people, especially the kind of girls I'm looking for. This may well not matter to you at all. Overall, though, I would say that if you are very good academically you will do well at any college, whether you are Aspie or not, and that non-academic situations (such as how friendly the students are) will be very similar wherever you go.