As the men and women come together tonight to form the top 12 on the sixth season of “AmericanIdol,” one thing is clear: This is a two-horse race. The only question: Of the rest, who can stretch their 10 minutes of fame to 11 or even 12 minutes? For answers, let’s turn to Las Vegas, of course — the know-it-alls who break banks by being smarter than Average Joes like you and me. This week, we incorporate a new feature on our “Idol” picks, courtesy of Bodog.com.

Melinda Doolittle, 29