I have to admit the Livewire (both the latest prototype and the one Scarlett Johansson rode in "The Avengers") is a beautiful bike to my eye, by far the most interesting of the lot so far. I'm not big on full-plastic sportbikes, though I do think the Lightning is beautiful as well, and I'm just drawn to the overall Livewire design. It's not trying to be a hog, or a crotch rocket, a retro bike or a cruiser. It kind of reminds me of a beach cruiser bicycle -- clean, simple and elegant. Maybe like an old-school "cafe racer" before they went all gonzo and destroyed the whole gestalt.
It is a shame that it's almost certainly going to be priced out of any reasonable market share. It's not going to be a viable alternative for the huge majority of riders, and a tiny niche market isn't going to help Harley (or the motorcycling community) at all. More's the pity.