Michael J Fox wins because he's still consistently entertaining in his guest spots. Liked him on Scrubs, like him on The Good Wife, and his previously mentioned Curb Your Enthusiasm appearance was good stuff. Nothing against Estavez, just can't remember the last time he did something I cared about.
if you had been a teen in the 80´s when the film first aired, then you also would have wanted to be a Basketball playing hairy kid.. today people only want to be some pale guy who looks like a dog.