We picked Evanston for our Post-baby move out of the city. We had originally been looking at both Evanston and Wilmette, but after renting for a year in north Evanston (right on the Evanston/Wilmette border), we ended up purchasing in South Evanston. I personally found a complete lack of what i consider to be diversity in North Evanston and Wilmette, and even though the schools in Wilmette were highly rated, we felt it was not a justifiable trade off for the lack of diversity.
We have been in our home now for almost two years, and I get happier every day we are here that we did not go further north. We had a lot of people try to scare us out of South Evanston, and I am so so glad we did not listen to them! I have great neighbors, but do not in any way feel like we are playing keep up with the Joneses, a common feeling I had further north.
I don't want to make it sound as if we met only horrible people in our time living further north. We met some great people. And I teach Pilates in Central Evanston, and I work with alot of women from all over the North Shore. They are all wonderful people individually, and I am grateful to know them. But there are different attitudes in different areas along the North Shore that I don't have an issue dealing with, as long as I don't have to be surrounded by it all the time. For my family, we felt as though we could be the most ourselves and help our children grow to be the best possible people they can be in South Evanston.
I think the most important thing is that you don't feel like you have to rush, and pay attention to your feelings and instincts about what you truly want in your home and neighborhood. I knew I had to tune out what everyone else's opinions of what I wanted were, and know that I was not making this decision for anyone else. So if that is Wilmette for you, that's great! If not, you will find where you are supposed to be. Good luck!