Question for the masses re: Hemingway and Fitzgerald

I am calling all readers of Hemingway and Fitzgerald. Though I have read much of this work, I regret to say that I cannot recall it (mainly Hemingway) and this is simply unacceptable to me. I therefore beseech you, which Hemingway and/or Fitzgerald* should one begin with? Here are my criteria:

• Important in the grand scheme of literature BUT
• Entertaining
  
• Moving
• Relatively short
  

As you can see, my standards are not too high, and since that rarely happens, I'm hoping you'll jump through this window of opportunity. Yes, that's right. I can't believe I'm actually saying this, but..."Tell me what to read!"

cordially,

Mme. Bookling

*obviously, i've read, remember, and even taught The Great Gatsby. sheesh.