Only Barcelona have a perfect points so far (9 points from 3 matches), no one would be wrong to expect them to become La Liga champions this season, but that's too soon to say, we haven't even go to the first El Clasico of the season yet, so even though Barcelona are currently having a good run, we can't know how they will be after that.
About Barcelona's match against Rayo Vallecano, I thought Olmo played well, it's a shame he didn't play from the start, maybe if he played earlier we could have seen Barcelona's third and fourth goals.
Barcelona start the so far with the better points not mean that they will be the one to become La logs champions this season, I think it’s too early to predict that for since this just started of the this season we should wait and see what the others team can able to do at the middle of the season; that’s the right time to know who are good to go for the season.
Because even the Real Madrid that where seeing now that they’re in the low points yet, they fit surprise people by took over the top standings from the Barcelona accept if the Real Madrid didn’t work with the their better squad because even in terms of the good players they cannot compare Barcelona with Real Madrid.
La Liga have 38 games and it means that Barcelona still have to play 35 more games so it is too early for us to say they are the favorites to win this season, we cannot deny that the opponent they have faced at the moment is not an opponent that is too difficult to beat so indeed we still need time to see the development and potential of Barcelona this season, The El Classico match could be a benchmark for us in assessing Barcelona capacity but I think winning that the match also cannot guarantee them the champion if they cannot be consistent in other matches, to be honest for now if we see Barcelona's performance of course it has improved but 3 matches with conceded indicates that Hansi Flick must to immediately improve his defense at this time, I personally will judge whether a team deserves to be a championship or not based on their performance when entering the middle of the season and for now, it seems that there is no yet team that can be said to be the favorite to win