Penske does seem best on average, but what really matters is when the rubber meets the road at the local shop. You might get a nearly-new truck at U-Haul, or Penske may toss you the keys to a clapped-out beater that won’t even get up to 50 MPH. All trucks are new at some point in their life, and from there, it comes down to how they’re used, abused and maintained. Get prices, roll the dice…
Things to consider… U-Haul’s trucks are built for residential moving with low floors. Last I looked, Budget and Penske rent regular commercial trucks with significantly higher decks. Yes, there’s a ramp with all three brands, but that extra 18" or so inches each time you go in and out of the truck will add up on your legs. On the other hand, the “penalty” for U-Haul’s lower floors is the wheel wells intrude into the loading space. Higher-decked trucks have completely flat floors end to end and side to side.
Most U-Haul trucks have a cage at the door containing moving pads and dolly. It steals space in the truck, and someone will mash their elbow into it at least once.
Be aware of what the truck runs on. Most U-Hauls run on gas, but most of the other guys’ trucks run on diesel. Regardless, they probably will burn more than you expect, unless you’re expecting to get 5 MPG. The “up to” figures on the websites are for new trucks with nothing in them.
Be **VERY **certain of the truck height vs the gas station canopy when you stop for fuel. Similarly, watch out for tree branches at your loading and unloading sites. A “simple” scratch can cost you dearly, and hitting an overhead structure like at the gas station will be devastatingly expensive.