Barcelona are still consistently performing this season, only in European competition they have had bad results but in the league Barca only lost once to Real but after that they always won a point, either one point or a full point, that's why they can have an 8 point advantage, if they stay consistent then Barca will win this season and next week they will only face Almeira, the bottom team with more defeats than draws or wins which may be degraded, so Barca will again add points.
Consistency is the only way forward Barcelona can make it , if they make any mistakes at this point it will be so hard for them to get the championship. I think Barcelona really needs to work on their attacking, it is not very impressive. It is nice to for them to come out victorious in the game.