Okay, you're all dying to say it (okay, not everyone, but those of you who have lived with women), and I know you're afraid of the wrath of the women on the board if you do, so I'll say it for you...an electric shaver is better if you live with a woman prone to stealing your disposable blade razor to shave her legs. I guess it's that legs have more hair than faces, because men's beard hair always seems much coarser than women's leg hair, but men seem to get very grouchy about leg shaving ruining their razors.
From the women's perspective, I've never liked electric razors for legs. The disposable triple-blade razors with aloe moisturizer strips are the best! I can even use those without shaving gel (only women can get away with this, I don't recommend it for men's faces).