" If you did not know the ratings, which hitch legs, and puck mounting points, pictured earlier, look the strongest to you, or the complete hitch for that matter?"
I think most people would say the B&W would tow much more than the Curt/RAM just based on looks. Biggest thing that bothers me about the Curt is the fact there are only four 1/2" bolts of questionable grade holding potentially a 25K RV. Even if they were grade 8 it would still concern me. My 21K kingpin hitch has twelve 5/8" grade 8 bolts holding it to the frame and I don't see much difference in the two conditions.