I've always been a fan of Bond films. I was surprised by how much I liked Casino Royale because I wasn't expecting much from it. Given the utter trash that were the latter two Brosnan films, I had pretty low expectations. However, since seeing it, I'd say it easily ranks in my favourite three Bond films, if I could actually rank them at all.
You Only Live Twice, as was mentioned, was a great film. In no small part due to the army of ninjas. I've always quite liked Goldeneye, From Russia with Love and Goldfinger. Though I like them all really. I even like The Man with the Golden Gun even though I shouldn't.