After a lethargic, though occasionally dramatic, regular season, the two-time defending champion Golden State Warriors are poised for a three-peat. The Houston Rockets and Oklahoma City Thunder are their chief challengers in the West. The Milwaukee Bucks, led by Giannis Antetokounmpo, are the Beast of the East. The Toronto Raptors have never made it to the Finals and, given all their internal issues, which Boston Celtics team will show up? The games tip off Saturday.