7. AJ Lee
Starting with the obvious, the current Divas Champion has been on a roll every since winning the championship back in June of last year. Since then, AJ has successfully defended her championship time and time again. She may have received a few non-title losses since then, but nobody has been able to defeat her in a big match situation when the championship was on the line. It's very unlikely that AJ will be holding the Diva's Champion until WrestleMania 31, but there will be plenty of time for her to lose and regain the title throughout the course of a year. As long as AJ is holding the gold at the time, she can still brag about being the longest reigning Divas Champion in WWE history. That's certainly nothing to scoff about. Rousey, who is also a champion and who is currently undefeated in MMA, would fit the bill for being a top contender to AJ's championship. Even though Rousey has no experience in a professional wrestling ring, her MMA career accomplishments (current and future) will stand as valid arguments for Rousey being more than capable of holding her own. In the past, we've seen AJ Lee go nuts and attack many Divas and Superstars, and her psychotic rage would certainly be put to the test against a woman who can definitely do some damage to AJ if she ever got a hold of her. It would also be interesting to see if Rousey could power herself out of AJ's grueling Black Widow submission hold. A match between these two could prove to be one of the most brutal Divas Championship matches ever seen.