I would say that Konrad was a better "wrestler". Yeah, Brock had a blast double that looked like a fright train at 90mph, but his wrestling skills lacked compared to Konrads, imo. Brock seemed to outmuscle alot of his opponents whereas Cole outwrestled his.
From my recollection alot of Lesnars takedowns came from droping to one knee and reaching. There wasn't a whole lot of penetration. If he could get his hand around a leg he could pull it in, usually. Alot of his offense was actually a defense caused by his opponent inability to get past his huge arms when he shot. Brock would "sprawl", sort of and hold them down and spin around them. It's a great technique but not the most technical. Brock used his large frame and strength to his advantage, which is very smart on his part.(guessing his coaches told him to do that) He had a very scaled down repetoir but used it effectively. I would even say that Sheldon Benjiman was a better "wrestler' than Brock was, just not as strong.