You can't compare player statistics since they would have played against different defences even in the same game as they would match up against different opponents. Also you need to take into consideration of things like offensive tactics, gameshape, enthusiasm, and offensive flow as they will influence shooting performances.
I probably miss some other important variables as well but anyways, there are just too many variables you need to take into consideration when comparing statistics as to why a player may be performing better than another. At most it can only be used as a guideline.