In the spirit of World Cup competition, we're holding our own tournament in search of the Better Stock Today. We're pitting 32 companies against each other and you, the reader, will determine the winner.

Today it's the round of 16, and Sirius XM Radio (SIRI 0.98%) takes on Vanguard Natural Resources (NASDAQ: VNR) in our search for the better stock.

Consumer goods analyst Mike Finarelli believes Sirius XM Radio should take the crown for one simple reason: a veritable franchise that includes exclusive content like The Howard Stern Show and programming from ESPN Radio. Higher-quality content affords Sirius the ability to raise subscription prices, offsetting costs as well as increasing profit. While the company has continued to grow in the face of Internet radio, there's still plenty more growth ahead when you consider existing subscribers are only a fraction of all cars on the road. All of this points to more cash flow accelerating through the business for the benefit of shareholders. 

Joel South, energy analyst at The Motley Fool, thinks Vanguard Natural Resources is a better investment today because of its mouthwatering yield and increasing payouts. In fact, since 2007, Vanguard Natural Resources has increased its distribution by 48% and with derisked mature assets, unitholders are getting their fill of Vanguard's 8.2% distribution yield.

Vote here to determine the winner of this match and sound off in the comments box below. Check back to Fool.com to see who advances in the tournament.