About half the counties in the present state of West Virginia voted for secession in May 1861. The greatest “West Virginian” is still Stonewall Jackson (of course, he is really a Virginian).
Lee posted his will in what is now West Virginia. Because of that, it was not known until recently that he was a slave owner. His will was not executed, and sat in the files.
Also the craziest West Virginian ever, and that's saying something. He was one strange unit, albeit, a fine battlefield tactician.
As to the greatest West Virginian ever, I'd vote for Gen. Chuck Yeager. He had the 'Right Stuff.'