It comes down to the individual, beginner or no. A beginner may find a revolver easier to use...a revolver doesn't have a safety to worry about and doesn't require a firm grip to function (i.e., limp wristing.) However, a revolver in DA mode may not be as pleasant to shoot nor as accurate for a beginner...especially not a small revolver, whose recoil might even be unpleasant.

I think the best thing to do is have the beginner take a class, where they can be exposed to a variety of handguns, and learn safety and shooting techniques. Then, take them to a range that rents handguns, and let them shoot various makes/models until they find the one that fits best, and functions the best for them.