The State Fair of Texas is known far and wide for its traditions. There's the 55-foot-tall mechanical greeter named Big Tex. There's the Red River Rivalry college football game that fills the Cotton Bowl each year with equal numbers of University of Texas and University of Oklahoma fans. And there's the increasingly over-the-top fried food concoctions that send frenzied fairgoers on searches along the midway. Since 2005, the fair has been handing out "Big Tex Choice" awards to vendors who…