i have played with AC quite a bit before..... i would recommend:
-----------------------------------dida-------------------------------
----oddo-------------------------maldini---------------------nesta----
--------------gattuso---------------------------jankulovski------------
----------------------------------------------------------------------
--------------------------------kaka----------------------------------
-----pirlo-------------------------------------------------------------
-----------------------------------------------------------seedorf----
---------------------------------gilardino-----------------------------
--------------------------pato----------------------------------------
-----------------------------------------------------------------------
dida - GK
oddo - CB - attack arrows pointing straight back
maldini - CB - attack arrow pointing back
nesta - CB - attack arrows pointing straight back
---------------------------- all high defence ---------------------------
gattuso - DMF - attack arrows pointing back and towards jankulovski
jankulovski - DMF- attack arrow pointing towards gattuso and back
---------------------------- both high defence --------------------
kaka - CMF - attack arrow forward (and back... your choice)
seedorf - LMF - attack arrow forward
pirlo - RMF - attack arrow forward
------------------------------ all normal defence --------------------
gilardino - AMF - attack arrow forward
------------------------------ low defence ----------------------
pato - SS OR CF - attack arrow forward and diagonal left
----------------------------- low defence ------------------------
formation: 3 - 6 - 1
yes those 2 defenders on the wings are pushed out very wide but they come back to centre if needed hence the CB position.
you should find yourself having no problems in defence... thanks to gattuso and jankulovski. controlling midfield with the sheer amount of numbers and this in turn will give you more passing options meaning you retain possession.
you dont have that much pace on the wings... however kaka, gattuso and jankulovski will be there in support... and when you do get behind the defence with your wingers... pirlo just whips in balls to heads like beckham.
gilardino provides support for pato. if you feel pato is a little isolated try gilardino as a SS and pato moved forwards as a CF.
overall... i find that with this formation it is hard to give away possession and in turn the opposition will be pressurized to close you down.. opening up gaps.
that did it for me.
HOPE THAT HELPS =]
tell me how you get on with that
if you don't like this... i do have more formations for AC... so just pm me or something.