If you want a fairer view without bias, try looking at the last five seasons, including last season. You'll certainly find a more balanced picture. In the last five seasons, Real Madrid has won La Liga twice, and Barcelona has also won twice. The other victory was won by Atletico Madrid, so this provides a clear reflection that Barcelona and Real Madrid have indeed been the teams that have dominated La Liga the most. However, I don't know which team will win this season because Real Madrid is still far from perfect under their new coach.
I would put Barcelona first to win this season. One of the simple reasons for this is that Barcelona has a balanced team and their coach is also very skilled, especially in big matches we see great planning and strategies from Hansi Flick to defeat the opposition. My second choice would be Real Madrid, I don't think it's unfair to put Real Madrid second. They have just changed their coach and Xabi Alonso is not used to Real Madrid yet, he is not even proven with big teams. So for now I can't put Real Madrid first in the list of favorites to win this season. On the other hand, Atletico Madrid's team is not in a good shape at all, I don't think they are a strong enough team to fight for the La Liga title at the moment.
I think if we talk about the best one according to their performance then Barcelona is the one who can't be forgotten. The main reason for Barcelona being on the number one is the coach they have. Because the strategy and the way of playing matters a lot. As they have the best coach. Who is known for his amazing talent Hansi Flicks knows how to manage the team and make them able to play very well. Hansi Flicks is an experienced coach who always plans big to achieve big. Because the importance of the coach in any team is something on which compromise is not possible. A good coach always leads the team in a good way but a coach with no skills can push the team in the danger zone and there are such examples present in the field.