While I don't have a Rhino, I have several other balls in that range of hook and oil handling. I'd hazard a guess that my BTU drilled slightly stronger than the others (pin over ring vs. pin-in-ring), it hooks 2 - 5 boards more with an equal about of backend, but a much smoother backend. It is not a small hooking ball. In fact, while I don't have a Fanatic, I think there's a good reason they called it the "Fanatic BTU). It is probably closer in overall hook to the Fanatic than it is to the Rhino but with a much smoother breakpoint.
Additionally, since I have slower ball speed, I originally took the surface to 2500 grit, from its stock 1500 grit. It cleared the heads even easier, but it had even more backend. So I returned it to its original 1500 grit. Still clears the heads easily.