Competent at best; I mostly agree with Rongo's sentiments. Bragg was known, perhaps unsurprisingly, as one of the few Civil War generals who seldom extended clemency to soldiers sentenced to face a firing squad for desertion.
Bragg once reportedly asked one of his soldiers "do you know what a retreat looks like?" The soldier replied "General, I've been with you on the entire campaign..."
He was chased out of Tennessee by Rosecrans (who was mediocre at best). After Chickamauga, he refused to launch an immediate assault on Chattanooga when its Union defenders were destitute. No army commander in the war was more despised by his corps commanders than he. Nearly all sent correspondence to Davis demanding his removal. If his contemporaries rendered this judgment, who are we to differ? The absolute worse Confederate general of the war.
A lot of people criticise Him for unimaginative tactics and too much reliance of frontal assaults(Shiloh,Stones River and Chickamauga) and lack of follow up that turned victories or draws into disappointments(Perryville and Chickamauga)