NEW YORK — “The Power of the Dog” — starring Benedict Cumberbatch as a closeted cowboy — is powerful enough to win the best picture Academy Award on Sunday. Although the film has grossed just $389,000 in its limited theatrical release, it has 12 Oscar nominations. Oddsmaker Danny Sheridan, whose Oscar picks have been right 52 of 60 times in the past decade, has “Dog” at even money, with the other close contender “CODA,” about a teenager with Deaf parents, close behind at 6:5. “‘CODA’ is a feel-good movie that makes people cry,” Sheridan said. “This is the closest race for best picture in a lon…