Tamra Barney Tamra Barney

If The Real Housewives of Orange County's Tamra had to be stuck on a deserted island with one of her castmates, who would she choose? Not her BFF Vicki or new bestie Gretchen.

"Heather!" Tamra tells TVGuide.com. "She's a ton of fun and I know she'd have champagne packed somewhere."

VIDEO: The Real Housewives of O.C.'s Gretchen explains fallout with Vicki

In the video below, Tamra plays our game brand-new game, "Which Housewife?" during which she tells us which of the show's cast members is the fakest, who is the most sincere and who has the best sense of humor. Plus: Will Tamra and current boyfriend Eddie walk down the aisle soon?

The Real Housewives of Orange County airs Tuesdays at 9/8c on Bravo.