Depends on your definition of stroker. I don't think there are any successful pro bowlers with less than 225 rpms. There are a lot of guys who play the gutter like Norm Duke, Walter Ray, Parker Bohn, Haugen, Pepe and Scroggins. But at the same time, they have a decent rev rate.
I think the closest is Duke, but I have crossed with him when he was playing left of center wheeling the whole lane.
I think in reality, Liz Johnson is the closest.