I would always try to pull from the frame... it is the strongest spot and it is what you really want to attach to.

For just pulling/winching it should not be a problem at all but snatching NOPE!! Get that strap on the frame. When snatching you are putting some extreme loads on any point you attach to far more than if you had just winched. And it all happens so fast.

Oh and Jeff I never hit a building..... it was the side of a mountain!!!!! So there!!!