Who's next? "The smartest guy I know is [director and producer] Mike Nichols," George says. "And he's really fun. And he'd bring [his wife] Diane [Sawyer]—she's as sharp as they come."
Without hesitation, George also chooses CNN's Christiane Amanpour .
To round out the group, George wants a musician. "Put Tony Bennett there," George decides. "You want to hear some good old stories."
Who gets the last seat? An architect—Frank Gehry. "People from a bunch of different worlds," George explains.
"This is doable," Oprah says. "You should do this!"