Already From the beginning of the season I strongly have this believe that Barcelona will likely be this season's La Liga Champions despite that Real Madrid was at some point toping the league. This results has clearly shown that Xavi made a good signing during the transfer market. Having Barcelona got this 8 points clear ahead their major contender Real Madrid, is something that Real Madrid will definitely find very difficult to close the gap at this point in time in the league.
By risking their finances with player transfers at that time it actually looks better now.
But even though at the moment the points are pretty good and the title race is already in sight, I personally feel it's still not convincing for them to win. The reason is quite simple, because until now we still can't make this an absolute decision considering that the league is still very long so far and it is possible that a decline can still occur like what happened before for them.
It would be great if something like that didn't happen, but the conditions are still uncertain even though they have performed well so far.