K I will bite...
Hoppe, Mosconi, Bustamante, Earl (Trump too if you include snooker guys) ... some of the best players ever have visibly crooked strokes. Well Earl's isn't so obvious, but he talks about his arc that has a bias to the right in his commentary. He mistakenly attributes this stroke bias to all righties, claiming lefties will have a left side bias. For long stroking 'swingers' like Earl, this is true. But certainly not for orthodox methods of cue delivery.
edit: on the women's side, Chou Cheih Yu is pretty damn crooked on her stroke shots.