As a fan of blue, I think I like this one the best. Beyond that, this poster has many of the general secondary characters as well, like Eugenie and Maximilien (sp?), who I generally liked more than the main characters, except for (of course) the Count, who's in this one with his top hat and opera cape, looking very villainous. =D No Beppo, though. ;_;
i also like the very fine detail in it. Looking at it full-sized, it looks like you can see individual pencilstrokes and no hint of CGI. That makes it so much the better.