NOT TO MENTION HE HAS TO ACT LIKE HE DOESN'T NOTICE ANYTHING DIFFERENT EVERY TIME GOLDIE HAWN COMES BACK FROM THE PLASTIC SURGEON'S OFFICE: Kurt Russell gets a little love from the folks over at the Onion A.V. Club as the most Underrated Working Actor, which is just one category in their Underrated List. Others shining in the Onion's spotlight: King of the Hill, user comments on IMDB and Martian Manhunter.
Feel free to add your own underrated in the comments. I'll start with Underrated Condiment: Yellow Mustard. After turning my nose up at the French's and its ilk in favor of Dijon, brown, honey, and all the other variations, I've come back around to the yellow stuff.