R.
I think the western suburbs are great. We moved from the city to
La Grange two years ago. Our neighbors are young and fun. Lots of kids around and great public schools. We live two blocks from the train station that my husband uses to commute to the city. It's a 17 minute express. Ironically, the door to door commute is shorter now than when we lived in the city.
There's lots of walk-to shopping in both La Grange, Western Springs, and Hinsdale. The majority of things to do are actually in La Grange though (restaurants,shops, small movie theatre, Trader Joe's, Borders). I don't know if you have your hearts set on Hinsdale, but La Grange is definitely worth checking out and it's closer to Chicago. Also, a heck of a lot more affordable and a fair bit more diverse than Hinsdale.
I wanted to add that overall the taxes are lower in La Grange because it's still cook county whereas Hinsdale is in DuPage. Can you tell I'm advocating my town?? :)