Have always liked both backs, but Ingram is the more polished, instinctual runner. That's often the difference between boom and bust when it comes to a back's skills translating to the NFL.
I don't see quite the cutback ability, vision or balance from Richardson that you'd hope to see in a very highly-regarded prospect and I have to wonder how much of his success is due to Alabama's offensive line, which seems to be the best in college football just about every year.
Don't really have a horse in the race either way, just calling it like I see it.