Dodge when your team is extremely toxic or extremely squishy, it requires a great deal of coordination to make it work, I would also dodge when 2 people pick champs that can only go in mid like veigar and anivia
When i have a really troll team i usually win, 5 tryhards who all seem to have a free win we loose, so honestly i just go with it and hope for the best, its solo que after all anything can happen
Yea.. I never dodge at all unless my friends in promo and im on a smurf. Every game is just as winnable as the next.. playing with good players on a meh team comp still wins more games then playing with clueless players on a good one.