Uhual is cheaper (can't beat 19.99 + .59/mi for a cargo van), but they may be sold out due to the end of August/beginning of Sept rush (college, Sept 1 move ins, August 31st move outs). I needed a truck and I eneded up taking my mom's new Sienna since all the Uhuals were sold out (sucked b/c I kept thinking I was going to damage it). I have never had a bad experience with Uhual despite what people say. Once you get to the bigger trucks, the prices look similair across the board when comapring companies. Just get the place that will make less damage milieage wise.
I suggest getting a 14' truck if you have lotsa of funiture. This will ensure you will make minimal amount of trips. Trust me on this, the extra money you will spend will be well worth your while. I just moved to another aprtment and going back and forth was a time killer and only caused more fatigue (put in the fcator that I had to move up 4.5 flights of stairs....my whole body is killing me now and I still have stuff in the van to bring up🙁)