Adrian Peterson.
I love how people are saying they like Chris Johnson because he's not injury prone and because he doesn't initiate contact.
Remarkable that people are calling Peterson injury prone considering he only missed two games his entire career (rookie year). For an injury prone guy, he sure know how to rack up the yardage and TDs.
And aren't running backs who don't initiate contact considered "soft" or "aging" by most people? Nothing against CJ (who is having a wonderful year and I'm rooting for him to break ED's record), but give me the back who isn't afraid to lower his head to fight for those extra yards. He is a violent runner and he strikes fear. I'll live with a few fumbles if you're racking up 1,500+/12+ a year.
Also, my one criticism of running backs is that when they get to the edge and have one on one against a defender (especially against corners, that's when it pisses me off the most), they get scared and try to get out of bounds and get what yardage they're being allowed. Sometimes, it's smart to do that, but AP just goes through the defender when he needs to and he gets so much more yardage out of it because of it.