As far as a fair goes, the MN State Fair is great.. but I am just not that into fairs. I am not big into junk food, so I actually left the fair hungry last year (though I did have some perennial favorites). Still always have to go to the all you can drink milk booth!
One of the best parts is the Lil Farmers area near the old machinery hill... both of my children had the chance to pretend they were on the farm.
We also stopped at the Kiddie Midway but only went on a couple rides because that is so expensive.
I do love that some places have great goodies though!
And yes, the deep fried candy bar on a stick is pretty good.