This question can be answered two ways. I think the better running back, in the long run, will be Burkhead. But, I think Helu is going to have a better season if you solely compare their yards by season end.
helu has one bad season because he has one nagging injury that the coaches wouldn't just bench him...does anyone not remember this guys monster sophomore year...even injury riddled last year(one nagging injury) he still put up big yards and had big plays(saved the kansas game with a big run)...i know rex is the new big thing, got to meet him and it was awesome, but i think helu will show what we all thought he would be last year
The one thing about Helu that bothered me his Junior year was the inability to reach the end zone. Yes, he rushed for over a thousands yards, but he was unable to score a single rushing touchdown in two of his biggest games: vs. OU and vs. Va Tech.
You do bring up a valid point, in that he was not injured his sophomore year. But, I think that had more to do with having Castille and Lucky on the team more than anything else. His body can't stand being the go to guy every week. Plus, he has been held out of post-season play for two consecutive seasons thanks to knee problems.
Don't get me wrong. I think Helu is a great individual and pretty darn good running back. All I'm saying is that he has a lot to prove this year.