From what i see, GKs, Central Defenders, Creative midfielders and Strikers should be avoided in these Fantasy things, because they are expected to play well and when they don't they 'fail' to the expectations and we get fewer points. On the other side, we should look more at side defenders (most of them are more consistent and less prompt to mistakes then CBs), Central Midfielders and Bot-to-Box guys (guys like meireles, ramires, de rossi, etc). The rest just low-mid quality players that dont spend many points.
But this is just my theory.
But this is just my theory.