Although the best Whitaker was at lightweight, he still beats Crawford at 147. I'm not even sure welterweight Whitaker is better than Crawford. The reason he wins is that Crawford's premise is based on taking time in the early rounds to figure out the best way to beat his opponent. He often gives away the early rounds because he is completely sure of himself. By the time he figures out there is no figuring out Sweet Pea it will be too late to make up ground. Whitaker 8 rounds to 4.