Vince Gill put out a 4 CD set last year called These Days for which I believe he won a Grammy or AMA award. Great playing and top engineering.
Emmylou and Mark Knopfler - All The Road Running - is amazing production - some will call this country, some not-
Also new and very good is the Cowboy Junkies new version of The Trinity Session called Trinity Revisited - some will call this country, some not-
Martina McBride on Timeless is old classics, played by old players on old instruments but thoroughly SOTA recording
Willie Nelson on You Don't Know Me - songs of Cindy Walker also turns the trick - classic country writing with great production
Again you may or may not put them in the category but the Dixie Chicks work has been consistently well produced, especially to my taste Taking The Long Way
Finally I much like Allison Moorer - her new album Mockingbird is pretty sweet