From the moment Kevin Durant signed with Golden State two summers ago, the debate over who is the Warriors’ alpha dog has raged: Stephen Curry or Durant? In Game 3 of the NBA Finals on Wednesday night in Cleveland, Durant made his case — and it was a convincing one. Durant’s 43 points — a playoff career high — on 15-for-23 shooting to go with 13 rebounds and seven assists lifted the Warriors to a 110-102 victory and a 3-0 lead in the best-of-seven series, moving them within one victory of a second straight title and a third in four years. After Curry starred in Games 1 and 2, the reigning NBA Finals MVP took over Game 3. “There is just a sense that we’re all on the same team and nobody cares about whose team it is and all that stuff,” Warriors Coach Steve Kerr said Tuesday.