I first read Graham Greene's The Third Man and The Fallen Idol back in 2011. I said back then that Greene is regarded as a literary giant because he is a literary giant.
Of the two stories, I find the "The Third Man" to be the better one. Not only do I find the subject matter more intriguing (racketeering in post-World War II Austria), but Greene's writing style is just... envy-inducing. Buttery-smooth, effortless... everything that makes me mad when I read writers of such irrefutable talent.
"The Fallen Idol" is intriguing enough, but that one doesn't rock me like "The Third Man" does. Maybe I should watch the movie version. I've seen the other story's movie, after all.
I'm gonna ramble. Just know that Graham Greene is awesome.