I went with the Curt hitch.... I know, I know it gives the "filled diaper" look as Tom4bren as mentioned but.............

in my many years of R & I bumpers, I have never seen ones so whimpy!
I don't know how they even passed the US 10 mph standards.?.?

So, if you are just gonna use it for a camping grill holder or step bar, I would go with the strength of the Curt that bolts to the frame rails.

"That's my story, and I'm stickin' to it"............