I usually always go for attributes cause i consider them more stable, Special ability is a boost for attributes but get triggered in certain moments and certain scenarios. I will always prefer a MC with 200 passing than a MC with 150 passing + Playmaker SA.
For the defensive line - 1 defensive wall and 1 aerial defender are a must
For the midfield line - DMC - playmaker sa
- MC - playmaker sa
- ML,ML - playmeaker sa or dribbler sa
For the attacking line - AMC,AMR,AML - shadow striker sa ( i usually give 1 of them a playmaker sa, he will be the assist man in front ) or free kick specialist
- ST - 1 on 1 finishing or Free kick specialist