The fullback position isn't the sexiest battle on this list, but it's more important than folks give it credit for.
Whether it's plowing the way for Adrian Peterson and Toby Gerhart or acting as the last line of defense for Christian Ponder, the fullback can be a critical portion of the offense.
Not as many teams use them anymore—the tight end is more common these days as an extra blocker—but they can be a tremendous aid to an offensive line and the key to a big year for a running back.
Ellison is listed as a tight end, but his size and skill set say fullback or H-back. He's a big moose of a guy who can catch the ball and run with it if need be and he's a good blocker as well. He's a blue collar player—nothing special and what you see is what you get.
D'Imperio is entering his second year. He was effective for the most part in 2011, but he's not so good as to not be in danger. He's a better run blocker than a pass protector but knows the offense and already has a rapport with both Ponder and Peterson.
I've followed Felton since he first came into the league in 2008. He's moved around some despite the fact that I've always felt he was a very good fullback with some upside. He's a big brick wall of a guy and both run and catch the ball pretty well if need be.
Like the other two though, he's not special, just a solid blocker with some upside.
Winner: Jerome Felton
Felton has long desired a shot at carrying the ball regularly, and you can't get that on the bench. While it's unlikely winning the fullback spot will get him anywhere near a starting running back spot, given that Peterson was hurt badly in 2011, it's not unreasonable to imagine that he could get some carries.
The Vikings tried to claim him off waivers last year, but Carolina snagged him. They like Felton, and they'll be interested to see what he could do as the most experienced, versatile and effective fullback on the roster.