This is a tough call to make. That factory hook can take some abuse but to use it in a pull while snatching is probably not a good thing. It's strength vs the amount of force necessary to pull something, that's the call to make. In some cases, it's fine, but when you are in the mud up to the frame and floorboards where the mud is soupy (where you would loose your boot if you step in it), I wouldn't trust it.
Same for the rear hook. Use a tow frame on the back and feel more secure. At least it's been rated at 3500#s.....for the 2" hitch frame. It's also bolted into the frame at 4 points (4 bolts).