I can say that Barcelona are having a better chance here of winning this El Classico, since Real Madrid attacks has not really synchronised at the moment especially since Mbappe returned from injury while their defense is still shaky. Raphinha has been really far impressive, this season in the Barcelona attacks, they have been able to find their rhythms.
Though, Real Madrid can surprisingly be victorious here if they all work together in their best performance as a team, showing why they're the galaticos
Actually we can't compare their performance when playing against other teams, because it's not a worthy opponent, the situation will be different if both teams fight each other and something unexpected can happen. Apart from that, the home team factor can also have an impact on their performance so they have a greater chance of winning. I'm not saying Barcelona is worse because they are at the top of the table, but I think Real Madrid has a better squad in all aspects.