Consumer Reports recently surveyed 28,000 of its online subscribers and they voted McDonalds the least tasty out of eighteen fast-food chain burgers. Least tasty, sure, but perhaps the longest lasting! Scoring the highest marks were In-N-Out and Five Guys, which sounds about right. Though the full results arent yet out, Wendys also ranked far worse than the highest-rated chains, according to a Consumer Reports teaser lending credence to a recent Onion article: "Wendy's to Phase Out Unpopular Hamburger Sandwich.
Consumer Reports magazine: October 2010 [Consumer Reports]