I have the B&W turnover ball and companion 5th wheel hitch, and I like it. It is quite stout, pivots 4 ways, has a good range of forward and vertical adjustment, and it is very easy to visually confirm that the jaws are around the pin. Installation is also pretty straight forward (but measure twice before you cut that 4" hole).
It's biggest advantage is that it leaves the bed flat when removed.
The disadvantage would be that it requires a torque wrench and socket to put the hitch back in (as opposed to pulling pins from rails).
Next time, however, I think I will go with an air ride hitch.
Dodge Ram dually laramie 4x4 w/jake, B&W, Brakesmart.
Kit Patio Hauler 394F toyhauler 5th wheel
Camo 680 Rincon, Green 500 Foreman, Blk twincam Roadking