The Castrol Edge Ranking of every player in Europe's top five leagues – “based purely on objective data on the positive or negative impact on his team’s performance of every touch in every match by a player” - ranks Dzeko as 8, Aguero as 27 and Balotelli as 236. (Van Persie is the only premier league player above Dzeko.)
For the Premier League this season:
The Minutes per Goal were 107 for Dzeko; 112 for Aguero; and 102 for Balotelli (111 for van Persie; 104 for Rooney).
Excluding penalties, the Minutes per Goal were 107 for Dzeko; 133 for Balotelli; and 129 for Aguero.
Up to the end of April, Dzeko had converted 50% of Clear-Cut Chances (as defined by Opta Stats), whereas Aguero had converted 48% and Balotelli 40% (van Persie, 45%; Rooney 59%).
The Minutes per Assist were 301 for Dzeko; 257 for Aguero; and 1329 for Balotelli (237 for van Persie; 404 for Rooney).
As reported on Bluemoon, Aguero’s strike rate is much higher when partnered with Dzeko than with Balotelli (i.e., lots of goals versus just 1 goal, albeit a crucial one!).
Dzeko (9 goals) was 3rd in the top-scoring players AWAY from home. He was behind only van Persie (13) and Rooney (10); and, presumably, he was well ahead of both in terms of minutes per away goal?
He scored 4 goals of the total of 17 goals conceded by Spurs at White Hart Lane in the PL last season (probably a record % for any player vs any club in the history of the premier league?).
A quick check suggests that Dzeko’s scoring record against the other 3 teams in the top 4 is at least as good as Aguero, Balotelli, van Persie and Rooney – and probably much better than most in terms of minutes played.
And by common consent we did not even play to Dzeko's strengths....
P.S. Before anyone suggests I am only interested in Dzeko, if forced to choose, Aguero would be my favourite striker. I actually believe that - if managed correctly - Aguero and Dzeko could be one of the most formidable strike partnerships I have seen in 60 years for any team.