Just received my Anakin ROTS, sweet saber. But I honestly can't really determine wether it's the metal one or not. I'd say it's metal as it seems to weight a bit more than Luke ROTJ and a bit less than Vader ESB, and the blade is sturdy, not wobbly at all.
But looking at the color of the copper buttons, or the yellow of the switch box, I honestly can't tell the difference. The small pins seem cool to me, but they don't look like screws in mine, they are nicer than screws.
Whatever version it is, I can say I'm pretty happy with it, blade is the most even (in terms of light) of all my 3 sabers. And I don't see the unfamous dark spot in the middle. The policarbonate blade seems flawless too. The hilt has a bit of "black paint" that can be seen at the plastic black part underneath the emiter metal part, where the blade comes from, as if a little bit of black glue or black paint hadn't been equally absorbed or maybe some of it spilt that black plastic part, but it's almost unseeable.
A very cool saber indeed, as all the rest I've had in my hands so far.