I'm sure it will be Barca with Lamine extraordinary performance, as for Real Madrid, They have a bunch of stars but I feel they aren't gonna coorperate and they wont be good chemistry among them.
I think in a similar way. Many people have already declared Real Madrid as champions again, but I'm not sure that Mbappe will fit into the team. Real have a system that works at the moment, but with Mbappe they will have to play in a different formation. I think Bellingham will go down this year, they lost Joselu, Rodrygo can't contribute like last year, it will be up to Vini Jr. again. This year Barca will be the favorite for the championship if they get Nico Williams. I also believe that Yamal will continue to improve.
So far we can only speculate and compare Barcelona vs Real Madrid, in general people say Real Madrid will dominate La Liga and that makes sense because they have a super star squad while their rivals Barcelona have not taken any steps I mean just plans and negotiations for next season. I'm not saying Barcelona is a bad team it's just that in my opinion Real Madrid is much better in all aspects and Barcelona cannot compete next season. From what I see Barcelona is preparing a young squad meaning they need time to experience improvement yeah at least the next 1-2 seasons.