AJ isn't at the top of my list yet but He's still young, I think Curt is more flashy and has the speed needed to play the position when healthy. AJs lack of speed has showed up big this year, he's a stout guy up the middle but has cost us huge in big plays this year.
I'd say lathers or p Waggoner. Sentimore has had some moments as well and I believed Randolph was on his way to becoming the next Eric berry before his injury