If you are only planning on staying at the Grand Canyon for one day, stay in Williams. If you want to explore the South Rim of the Grand Canyon for several days or a week, then stay at the Trailer Village. If you stay at the Trailer Village, the tram is at the entrance to the Village and you won't need your tow vehicle for the balance of your stay.
Bill Kerfoot, WBCCI/VAC/CAC/El Camino Real Unit #5223
Just my personal opinion
1973 Dodge W200 PowerWagon, 1977 Lincoln Continental, 2014 Dodge Durango
1979 23' Safari, and 1954 29' Double Door Liner Orange, CA