I saw a video of a tour of Sony Santa Monica and they said Kratos was modelled at around 30,000 polygons (the 20,000 claim is outdated) so about the same as Drake. Anyway, million polygon models will look awesome but won't look as great as you think, Cliff Bleszinski was going on about how he wants next-gen to look close to Avatar quality, which will not only not happen next gen but won't happen during our lifetimes. Avatars character models poly-counts alone are in the billions and film CGI uses ray tracing, lighting is one of the, if not the most important thing for making CGI look real. You can have an insanely high ploy-count but with jaggies, poor animations (That's every game ever, including the awful technique used in L.A Noire) and crappy lighting/ shadows the characters will look mediocre (terrible by film standards).
Right now Kratos has one of the best character models rendered in real-time in a game this gen (below is 100% real-time). Expect the Good Samaritan tech demo to be the standard for how characters will look like next-gen, so quite a nice upgrade. I just hope no-one naively expects Avatar quality.
The small picture above does no justice to how amazing Avatar looks, and the UE3 tech demo seems to be an off-screen picture which is why it looks grainy and lacks fine detail but it's all I could find, oh well you get the picture.
