Thanks for all your replys!

4-5-1 is like i said one of my favorite formations. Than I can use my best players....
The 3n-1-4-2 is the recommended formation to counter the 3w-2-3w-1-1...that's why I thought about that one....

One the 4-5-1 I have usually red arrows on the dr and dl and blue's one the dc's....nothing else. And normal, both flanks, hole pitch, normal tacking, short pass. Do you agree with that?