Among these three strong teams, Barcelona does get a fairly weak opponent compared to its two rivals, but that doesn't mean it will be easy for them to beat Real Sociedad, I have seen how they played against Madrid yesterday, it was a good game from them. Hansi Flick still has to prepare his best squad so that victory and the main place in the standings are still theirs.
Actually, it is said to be weak, I don't think it is right because even though in terms of popularity and league quality Barcelona may be superior, but in the end Benfica is also not an easy opponent for them to beat, especially since they are one of the big clubs in the domestic competition and Champions League subscriptions.
In terms of h2h also for now Barcelona are still losing to Benfica and their last meeting in the 21/22 season in the group phase even Barcelona had to lose with a sizable score where 3 goals without reply they got at that time.
So even though for now Barcelona is still one of the clubs that is quite favorite and its performance is on the rise but I think Benfica could be back to surprise for now although surely Barcelona is the probability to win but they cannot underestimate Benfica for now because it could actually backfire for them.