I have favorite formations, and i build my team acording to that formations.
Acording to my opponent i adapt my formation, for exemple If my opponent plays with AMC i play with DMC, If he plays with 3 DCS i play with AMR and AML, but always putting my stronger players. It is just stupid If you to adapt to your opponent have to play with your weaker player and put your stronger in the beanch.

In one of my teams A a Z FC i always play with 3 DCs no matter what.
You can see my records in my signature.