I heard that the RZR's are some what more delicate than the Rhinos.
What do you mean by that? Like Polarass525 said, the only problem with the RZR is the factory air intake setup, unless you get people treating them like a long travel sand rails and jumping them 10' in the air, but you are bound to have problems then. The reason you dont hear about Rhinos and the others having problems with the frames tweaking, broken shock mounts and axles is because they dont have enough balls to launch like the RZR's do.
I had mine pegged at 65mph going down a trail and hit a bridge that launched me about 4' in the air...when the ground caught back up with us, it felt like we landed on feathers. The rhino that was following me in our group had his pegged out at 35 (lol) and hit that same bridge...his tires barely left the ground.
More delicate? Dont think so, people just use them much harder because they are capable of so much more.