Clayton Davis Senior Awards Editor As a director, Ben Affleck has proven himself to be a versatile, compelling talent, moving seamlessly from the morally complex “Gone Baby Gone” to the stark crime drama “The Town” to the tense and thrilling best picture winner “Argo.” Even Affleck’s one directorial misstep, the critically panned box office bomb “Live by Night,” has an intriguing gloss and conviction. That’s why it’s so difficult for many viewers to answer: “Which Affleck-directed joint is your favorite?” Well, that decision may get even harder with the arrival of “Air,” Affleck’s latest feature which premiered as the Closing Night film at the South by Southwest Film Festival earlier this month.