I honestly like World at War, just pissed because one, it didn't have really any story, two, from what I do know, the battle fields weren't anywhere near accurate. In MoH: PA, the Tarawa and Guadalcanal battlefields were as accurate as I ever remembered them from pictures.
BUT, then again, World at War was made by the same guys who made Call of Duty, Big Red One. (Bust as well, online play for CODWaW is supposed to be better than modern warfare though)