You want comparison. Here is a real life scenario.

Today, I tried booking an award for Key west for the coming weekend. The Hilton is booked solid and there are no rooms available for purchase too.

A quick call to the Diamond desk and they got me a suite in an oversold resort on points. I am not talking about a guaranteed room at rack rate. Even a SPG plat status cannot beat that.

Disclaimer: I have a HH Diamond and SPG Plt.