Who's better Adrian Peterson (Vikings) or Chris Johnson (titans) and y?

I would say Chris Johnson because he knows when to quit. Part of Peterson's problem is he will go for the extra yard when its unnecessary giving him more fumbles. Johnson is faster though not as strong. Johnson has the chance of being MVP this year. The Vikings offseason took a lot of spotlight away from Peterson with Farve and now that Farve is one of the best QB's this year and he has a chance for MVP. Johnson is getting the credit on a not so good Titans team and this year is better.