Carrick wipes the floor with Mikel with his passing ability, how can you not understand this?And i used Mikel because as you say his range is brilliant and his pass% is sensational just like Carrick. Also like Carrick he is only really good for one role and when things arn't going Chelsea's way his performance is highlighted as a very poor one just like Carrick.
Mikel:
0.4 key passes
49.5 passes per game
90% success rate
3.7 successful long balls per game
Carrick
1 key pass per game
73.1 passes per game
90.1% success rate for passes
6 successful long balls per game
So carrick is pretty much the same pass accuracy but makes longer passes and makes many more passes per game