Camp Douglas conditions were a deliberate attempt to denigrate and starve Confederate soldiers. One of them was my great uncle, Francis A. Boring, Pvt., Co A, 18th Georgia Infantry, ANV. Until after Sharpsburg, the 18th Ga. was part of the Texas Brigade. The Texas Brigade was first blooded at Gaines Mill, and later fought under Longstreet at 2nd Manassas. They fought in the Cornfield at Sharpsburg, where their Commanding Officer, Colonel James T. Wofford, commanded the Texas Brigade.
Reorganized, they were behind the Stone Wall at Fredericksburg. Afterward part of Wofford's Brigade upon his promotion to Brigadier General, they fought at Chancellorsville, Gettysburg, in the Wheatfield on the second day, and many other battles.
Uncle Frank was seriously wounded at Spotsylvania in May 1864. A Minie' ball entered the front of his left shoulder, proceeded to shatter the left scapula, ranged downward toward the spine, and exited just to the left of the spine. He was captured in Roswell, Georgia July 11, while at home recuperating from his wound. He was transported to Marietta, Georgia, Nashville, Louisville, and finally to Camp Douglas, arriving July 22. He was paroled a year later, June 25, 1865.
He stated in his pension application that his incarceration at Camp Douglas caused his rheumatism, resulting from exposure to extreme cold and wind, without adequate clothing or blankets, available in abundance, but not issued as a matter of policy. He lost the use of his left arm, no doubt partly from his wound, and during the last twelve years of his life was confined to his room, barely able to move around. My GGF died at Seven Pines, and my other great uncle, Alexander N. Boring, 4th Sgt., Co A, 18th Georgia Infantry, ANV, was captured at Cedar Creek October 19, 1864. He was sent to Point Lookout, and paroled in late June 1865.
Please don't compare Andersonville, where terrible conditions resulted from overcrowding and lack of supplies, to Camp Douglas, where those conditions resulted from a matter of policy.
As to Lee's abilities compared to Grant, all things considered, many knowledgeable students of the art of war, up to General D.D. Eisenhower, have declared Lee one of the best tactitians and logistians in history. What are your qualifications to judge him? I don't claim to be an expert, but you can see my name above. What's yours? Stan