Ajay Mitchell #25, Isaiah Joe #11 and Shai Gilgeous-Alexander #2 of the Oklahoma City Thunder. Joshua Gateley/Getty Images The NBA’s reigning champion Thunder are just one win shy of reaching their second straight Western Conference finals thanks to their depth and versatility. Shai Gilgeous-Alexander and the Thunder continued to flex their playoff muscle , pushing the Lakers to the brink of elimination after a 131-108 win in Game 3. The Lakers are down 3-0 and lack solutions on defense, putting them in a tough spot. Oddsmakers have installed the Thunder as 12.5-point favorites on the spread for Game 4. LeBron James and coach JJ Redick have run out of options. Despite the Lakers holding halftime leads in both Games 2 and 3, the Thunder have responded with dominant second halves. Thunder vs. Lakers prediction, best bet In his illustrious 23 years as a pro, James has faced many dynasties, including the Big Three Celtics and the sharpshooting Warriors.…