Best way to dispose of a body is to find where the local mafiosos hang out and drop it off there. Let the professionals take care of it.
What are they gonna do? Call the cops and say someone left a body there?
My wife has always told me that the best way to dispose of a body is to drop it off at a hog farm. The hogs will dispose of the body overnight and won't leave a trace.
The only problem is that eventually somebody is going to squeal...