Not to mention that this Grievous is THE Jedi slayer badass we all love. Only thing I'm eh about for him is his original voice actor, in the show he had two and his second one was great.
2008 did him poorly, like really really poorly. Like the video shows, the big twist where Grievous has four arms was exactly that, a twist. And when he revealed it, he was beyond defeatable by those two Jedi masters(?) Fucker went lightning fast. In 2008 he constantly spins 2 win and it got real old.