For a time, I noticed that nearly all of my games were 3 flipper games: whirlwind, earthshaker, lights camera action, white water, super Mario bros, the shadow. I love them all. More shots, and I love how they give the table an extra dimension of "side to side" play.
Though, almost every guest who come to play never notice upper flippers, and if I point them out they can't properly use them, or choose to ignore it entirely.