My vote is for on-point, but I was not there when the new off-point dorms were built. The dorms (Gold and Cedars) on-point do look like they ought to be condemned, but you're really not in the room all that much anyway. The biggest benefit that I can't stress enough is yes, you are right there. You can wake up 20 minutes before your shift starts and not be late, you can go back to your room on long breaks (depending on where you work in the park, of course), and I do think it's quieter overall, since you're not near the late-night off-point entertainment. You can participate in the employee after-hours more easily, and you're right next to the Caf -- cheapest food you'll find, not to mention being right by wardrobe when you want to exchange uniforms.
I've heard that the traffic in from off-point is really really bad later in the summer (July and August) and there are parking-ban days, when you're not allowed to drive in because guest crowds are expected to be so heavy. So to me that would definately present a problem.
All in all, you need to think about what works best for you! Most of all, have fun! :)
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PO!NT OF VIEW - A Different Look at Roller Coasters
http://www.crosswinds.net/~justmayntz/thrills/