Allyn Gibson wrote:
Clarke's pretty much the only one of the Big Three I really enjoyed as an author.
Heinlein, I think, will be largely ignored and forgotten -- a science-fiction Washington Irving, essentially. (In his time, Irving was a major author, he defined the American voice. Outside of "The Legend of Sleepy Hollow" and "Rip Van Winkle," no one reads Irving's work today.)
I tend to agree. I think already, Heinlen is clearly seen as the weak link in the Big Three, and whenever I see Stranger In A Strange Land
being discussed, it's always tinged with a feeling of "yeah, it was the 60s, you have to forgive him."