I think Sadio is the best all round forward player I have seen in the premier league in 10 years. I think only Henry and Ronaldo are the name I would say match and probably better him at this point.
I define all round in this way; after watching him for 3/4 years, i'm not sure if LW, RW, or ST is his best position. He was electric in his 1st season at RW, moved to the left in yr 2 and his level dropped a fraction, but has since gone up in the last yr. This might give people the impression he is better on the left, I just think he is so talented and versatile that he has adapted. He was at great threat cutting inside on his left from the righthand side as well, remember his goal against Arsenal (on debut I think) Central striker is another position he looks born for as well, there seems to be no adaption there, his ability in the air is amazing and I think he would score 25 league goals every yr, if played exclusively thru the middle, we have bobby doing a great job there, so no need to adjust anything yet. But you can make an argument to say he has looked "best in the world level" in 3 different forward positions. A very rare thing, this would isolate him from suarez, torres, aguero, kane, drogba et al