What IS the Best Formation

[Spyros]

If your defense sucks more than you can take, you need to play DL-DC-DC-DR. 4 at the back make a good defense.
If your defense is ok, play with 3 DC's.

Personally I play most of my games with 3DC narrow but I got a quality defense line. For me the important thing is to control/dominate game and because of this, I play with 5 in the middle field. Finally I choose 2 strikers for most of the games.

Since you want to play with you AMR, I will give you 2 options: Either go for 4-4(ML with red arrow+MC+MC+AMR)-2 or 3-5(ML with red arrow+MC+MC+MC+AMR)-2.

If you like my suggestion I strongly suggest you find the best ML/AML you can get and play V-style (3-5-2 or 4-5-1) or even more daring 3N-3MC-AML&AMR-2.