Three of four... and unless someone gifts me one, I am NOT getting the HK AGC version.
http://www.toycollectors.com.au/blog/b101.jpg
Hasbro - SDCC - JP
(try to ignore the helmet on the Hasbro one... I must have knocked it while setting up the photo)
It's worth noting that my JP version in that photo does NOT yet have any stickers put on it, and yet it has more paint aps on it than the other two WITH stickers. (paint apps on the feet, knees, hips, waist, sides, shoulders, forearms, top, chest... everywhere!)
I actually LIKE the JP version sooo much better than the other two... except the shiny face. The shiny plating obscures the sculpting (facial features), so I'm tempted to swap heads with the Hasbro one, just to make the "perfect" version. (I prefer the silver paint on the hips than the shiny plating)
The sticker sheet is about 2/3 the size (and quantity) of the other two (because of all the extra paint on it).
I haven't had time to transform it yet, so haven't seen how significant the all-white alt-modes look compared to the other two (which have a fair bit of black).
I'm a little disappointed that the JP Scamper doesn't appear to have any differences to the Hasbro versions... as I would have liked to have a black head on the JP version, as their Metroplex is most Gen1 toy-accurate (all white), so why not their Scamper as well?