Hi, That Grant was a butcher of men of that there is no doubt. His casualty figures, esp. when he was directing involved with the Army of the Potomac, shows this clearly.
Could Lee have beaten him? I would say that if they had met in the early part of the war, yes, Lee would have run cirlces around Grant. No doubt about it. By the time these two commanders finally came to grips in the Wilderness and started their slugfest that lasted till the spring of '65, the South already had the wind knocked out of it. This last year of the war is where Lee really shines as an army commander to last as long as he did in the face of such over-whelming odds that were laid against him and his nation.
When considering all the blunders and military block-heads that the Union was strapped with during this conflict it is really a wonder that the North did win in the end. Which is not to say that they South didn't have it's fair share of block heads. I'm thinking her of Braxton Bragg and Joseph Johnston here, not to mention Jeff Davis-- who would would have made a pretty darn good army commander, but did become a very poor president.
Luckily for the North it was blessed with one of the smartest men ever to occupy the White House, either in the past or in the future. What this man put up with in his own governmental peoples during these times was really something else.
Luckily for Grant he had good political backers to protect him during his early commands in the West and also Lincoln recognized early on the Grant was one of the few generals the North had that would fight, despite casualties inflicted or received.
Grant was not, in my way of thinking the best the North had during the war. I believe Sherman was the best, as with his "March to the Sea' he took the art of warfare to it's next logical step in taking war to the people instead of the enemy's armies. War is not a civilized sporting event, never has been and never will be. This is just how it is, everybody suffers. And those who suffer the most usually lose.
And to me Lee was not one of the best either, despite the hype of the "Lost Cause' and his elevation to a 'god-like' status by the Southerners after the War. (And Lee, if he had lived longer, would have been the very first to admit to this as well.) I would choose N.B. Forrest and Longstreet as the best overall commanders they had.
The biggest failing I can find with U.S. Grant was that he allowed himself to be pushed into the presidency by peoples who were going to use him in that office for their own selfish gains. He just wasn't cut out to be a politician. He should have told them like Sherman did. "If nominated I will not run, and if elected I will not serve." To me, this is the one outstanding thing I really like about Sherman. But then I'm not a fan of big government or politicians either. In fact, I rate them about 5 or 6 steps below what I generally think of lawyers. And that's pretty darn l-o-w.
Take care, Sgirty