I'm with you on Indiana Jones. The plot was not as exciting or as mythical as the other movies. Covenant of the Ark and the cup of Christ to the Crystal Skulls....? I'll blame George Lucas for this one.

I really did enjoy the movie, but I have a feeling if I watch it again it will make me reminiscent of the 2nd time I saw the Star Wars prequels. I loved them in theaters for nostalgia sake, but when watching them again, I realized, damn, these weren't that good.

The action scenes were great and I enjoyed the actors they chose.

In terms of overall ranking:
Last Crusade
Raiders
Crystal Skull (tie)
Temple of Doom (tie)

If you haven't seen Iron Man, I found this to be a great comic book movie. It'll be interesting to see if the new Hulk movie is just as good since these are the first two that have come out under the new Marvel productions. Though I don't know a whole lot about Iron Man's background / story - Robert Downey Jr. was a great Tony Stark / Iron Man.