Leap of Fate by a country mile, with Solitairica coming in second, and Riptide GP 3 really needs more of my time. Last time I played, the controls didn't quite seem as tight as I remember GP2 being. I never once felt the urge to change to touch in order to get through a level on Gp2, but I had to here, even with max upgrades, to finish that level that looks like a flooded city. Hopefully I can just get better. I always loved the frantic feeling of playing Riptide on tilt.