Now I have both and it never fails that the ball bowler is the favorite of the kids, 5-20, and the shuffles are always favored by the older adults, 55-70. Just an observation I have made from different groups of people hanging out in my house over the last twenty years.
Me, I like the ball bowler, but I prefer the shuffle. I grew up on shuffles and when I got the ball bowler I was like wow, this is cool. I never saw one before I picked mine up. But as the years went by, I find myself playing the shuffle more and more. I must be getting old.