This is a tough one for me, but I would have to say that Raiders & Temple of Doom are almost exactly tied for me in terms of my personal enjoyment of them. Raiders would only inch ahead in my rankings because I think it's better film overall. But I love and enjoy them both equally! Then comes Last Crusade. And there's definitely a significant drop-off with that one for me. I can't figure out why (since I love Sean Connery, I like the "Young Indy" sequence, etc.), but for some reason, it just doesn't hold up in my memory nearly as well as the first two. And then even further away, at the very bottom, would be Crystal Skull. I suppose I could try to watch it again, but my two viewings of it in theaters when it came out did not leave me with good feelings. I did not enjoy Shia LaBeouf at all, I hated how Marion's character was depicted, and I cringed at the UFO sequence. As much I adore Harrison as Indy, I think they should've stopped after three. And it wasn't Harrison's age that was the problem for me--I thought he looked great in Crystal Skull, all his action elements seemed believable, and I did enjoy the little jokes and references in the film to the fact that he was older. But overall, something about the whole movie just didn't sit well with me.