Sit-on-tops are the most user-friendly. They're very stable, easy to get in and out of and there is no feeling of confinement on them. They also have small holes (called "scupper holes") that allow the water to drain right through them. Another big thing about sit-on-tops is that you can slip on and off them as you please. All these features make the sit-on-top kayak a great choice for nervous paddlers or families, for warm environments and for paddling with kids who love to swim.