the butterfly gives you a lot of possession to him, i changed it in just 5 mins of the game...
4-5-1v i believe can win you a game IF ur team quality against his quality is not that much differences...winning possession,its like you attack them 7 times and they attack you 3 times..thats the proportion..
3-1-4-1-1 or 3-1-5-1 is the best. when i used that formation, they couldnt score, winning possession a bit more than 4-5-1v...remember to put down arrows to your dmc and your 3 dc's...