I would have to say it doesn't get any better than George Strait or Bocephus
Willie, Waylon, Coe, Jr!!!
George Strait, Garth Brooks, Alan Jackson (he sucks live though), Brooks and Dunn, Corey Smith, Casey Donahew Band, etc.
Sheldon Williams, or Hank3. Traditional, phycobilly music that puts the constant pop country to shame.
Travis Tritt, Eric Church, Justin Moore, Luke Bryan, and Kip Moore