“The Hunger Games” will surely lose its box-office crown this weekend – and it’s going to be to a romance. The question is, Will it be the Zac Efron military sudser “The Lucky One” or the African-American ensemble “Think Like a Man”? Both are based on books by authors with devoted followings: Warner Bros.’ “Lucky One” on a novel by romance king Nicholas Sparks, and Sony’s Screen Gems release on an advice…