I'm seeing Dierks at the Hammersmith Apollo in April - he's a superb live performer.
As for others I like, take your pick from the following: Darius Rucker, Eric Church, Brad Paisley, Alan Jackson, Brooks & Dunn, Alabama, Charley Pride, Chris Young, Kenny Chesney, Zac Brown Band, David Nail, Blackberry Smoke, Keith Whitley, Travis Tritt, Don Williams, Glen Campbell, George Jones, Jamey Johnson, Gary Allan, Randy Travis, Pat Green, Dolly Parton, Johnny Cash, Trace Adkins, Steve Wariner, Kenny Rogers and Tim McGraw...probably missed a few too.