Lived in Chicago suburbs my whole life. Napervill
I grew up in the Chicago area suburbs and have lived in every area. Naperville has, by far been my favorite! Yeah, Illinois drivers are total asshats and you're going to run into that no matter what Chicago suburb you live in, but it's a HUGE city with amazing culture and something to do no matter what your in to. There's an easy drive into "The City" (Chicago), PLENTY of shopping options and the schools are phenomenal.
I was a little surprised when I this website saying the cost of living is almost 40% higher than the U.S. average. I mean, it's a little pricier but I lived here when I was 24-26 y/o with my boyfriend and we got by swimmingly renting a 2bed 1.5bath apartment (with a really nice deck and huge kitchen) for $1300/mo. So, in comparison to living in "The City" and the dilapidated crap holes I've been in, it was MUCH CHEAPER.
I'm on this website looking for the next place to live because of the winters. They are seriously unbearable! Right now I'm in my apartment listening to 20mph winds with a whopping -18 windchill. I'm in a (very crappy) suburb of Chicago, up north by Wisconsin but I can assure you, it is no warmer over in Naperville. Summers are short, hot and humid (or at least used to be). Now, they're very short and it get's "hot" for a couple weeks.
Either way, in my opinion, if you must move to the Chicago land area, Naperville, is definitely the place to go!