I hate it when people say a guy is uber talented.
Adrian Peterson is uber talented. Chris Johnson was uber talented. Tomlinson was uber talented. They would have been studs no matter where you put them.
Jamaal Charles and shady and lynch and foster are very very good. You could put them just about anywhere and they'd succeed, but in the right system they could be incredible.
Miller is a level down from there. He's good - maybe very good - and in the right system he could definitely be a rb1. But he just got paid, is going to have to learn a whole new coaching staff and offensive system in a new city, he's going to a team with a mediocre starting qb, that really only has one good player on offense, is built around the defense, and has holes on the offensive line.
That doesn't mean he can't do very well, but be careful with the superlatives. He's a good but not great player in a decent but not great situation coming off his best year. Maybe he keeps the momentum going, but it's hardly a lock.
I agree that flattering words really don't mean much. That being said, three of the main backs in the equation here (Miller, Foster, and Anderson) have fairly comparable metrics.
Over the past two years (which is not as arbitrary as it may seem . . . that's how long Bill O'Brien has been head coach in Houston),
Arian Foster racked up 296.6 fantasy points on 383 total touches in 0 ppr leagues. That's an average of
0.774 points per touch, which ranked 5th in the league in that time for RBs with at least 200 touches. In 1 ppr leagues, that jumps up to
0.931 points per touch.
Lamar Miller put up 378.3 fantasy points on 495 touches in 0 ppr leagues. That's an average of
0.764 points per touch, which ranked 6th in the league. In 1 ppr leagues, he averaged
0.936 points per touch.
C.J. Anderson amassed 297.6 fantasy points on his 390 touches in 0 ppr leagues. He averaged
0.763 points per touch, which ranked him 8th in the league. He was slightly below the other two in ppr leagues, as he averaged
0.914 points per touch.
Bottom line, all three of these backs scored at a similar rate on a per touch basis over the past two seasons in the environments they are now leaving. While we don't know what will happen in their new surroundings, on the surface it appears that they should score at the same rate. Based on that, the question should shift to who will get the biggest workload on their new teams. (Admittedly, we don't know where Foster will be playing.)