IO Interactive tapped into something unique in 2000 when Hitman: Codename 47 was released. There's always been this vision in popular entertainment of the well-dressed, urbane contract killer, and 47 emobodied that vision perfectly.
Elaborate environments overflow with murderous possibilities; Huge amount of content; One of the best-looking games of this generation; Contracts forces you to approach the same locales from different perspectives
Too-limited field of view when hiding inside of containers; Contracts would be stronger with more specific kill requirement possibilities