The 1967 version, which I saw in the theater at the time it was first released.
The 1954 version doesn't count because it's a TV movie, although I saw it on the big screen at the University of Southern California's Bing Theater, and I liked it. Afterwards, Harry Nelson, who played James Bond, addressed the audience, which included many students at USC's film school.
I didn't see the 2006 version--the 1967 version left such a bad taste in my mouth that I had no desire to see it.
Thanks. You abated my curiosity.