I like the Norelco Bodygroom (the original style) because it has a trimmer type blade in the front so if you've gone a few days between shaves, the long hairs are clipped first and the the foil head shaver finishes the job.
But truth be told, if you start shaving body parts, you have to stay stubble free or women will NOT be happy, so razor and shaving cream is still the best way to go.