I have tow hooks in the front, but they can get annoying, especially when the strap slips, then pokes through the strap (arrrrgggg!!!). Also unless you mount the hooks upward, the strap keep falling out. However, hooks make no noise on the road (clang, clang)
If you go clevis, and I can't see any reason not to, make the holes 1" to accept a 7/8" clevis bolt.
Yes, I have used a "pin" clevis, but they are not as strong as a screw clevis. The pin is "only" 3/4" and the main detractors claim the loop can spread and break the hairpin durring a side pull and make the whole mess a rocket.
Also "pin type" clevises (Clevi?) are not allowed by many clubs.
Another possibility is a "D" ring mounted directly to the bumper. The detractor there is that you then need a clevis to hook the strap on. Going directly to a clevis seems to be the best of those two options.
It really is a matter of personal taste as long as the hardpoint is a stong one and the attaching device is up to the job.