Suburb or city...where should we live?

So Alex and I have quite the conundrum before us if our house were to sell.  Where on earth will we go?  City or suburb?  

I grew up in the city.  I could walk to school, the park, the drug store, and all of my friends houses.  In fact, we could get to many other places if we took our bikes.  I loved the feel of the neighborhood.  There were block parties, our entire block went to Brewer's games together, we had our own kick ball/baseball bases painted on our concrete street, and kids were always looming about.  I now nanny in the city and love that we can walk to the lake, the park, the library, a grocery store, etc.  The fewer times I have to pull out my car keys the better!

Alex on the other hand, grew up in the suburbs.  He was driven to school, to friend's houses, to the park, and played primarily at his own house, with the expansive back yard.  He likes a bigger lot, being farther away from your neighbors, and the privacy of the suburbs.  

We knew this would be a big issue from the moment of our first date.  Yup, it came up in conversation even then.  So this little problem has not been a big deal, given that we moved into Alex's house in what I call "GUAM".  I mean, it's a little far...even friends are hesitant to make the drive.  But now with our house on the market, we may have to make a decision soon.

Tell us, where are your favorite neighborhoods...are you city or suburb?