While I've seen a lot of Tron replica bikes, I've yet to see one that was safe to take over parking lot speeds. Now if they'll show one of these things doing 100mph+ Then (and only then) I'll say they've freaking nailed it.
So my vote goes to Giampy and the Lotus because while it isn't the most faithful replication...it will obviously do the work. The rest are just show pony/trailer puppies that only look cool, aren't even slightly practical, and aren't stable enough to make it to the corner store without making you shit your pants.