I think Coleman actually beat Angle once in wrestling. People don't give "The Hammer" enough credit. He was one of the first fighters to show how effective wrestling could be and he popularized the ground and pound style. He was to wrestling what Royce Gracie was to Brazillian Jiu Jitsu.
Can't really say if Lashley is a better wrestler than Lesnar. I know Lesnar was more "decorated", but Lashley wrestled in the army and I believed he won national tournaments, not quite sure.