The Barcelona fans are going yo say Barcelona and the Real Madrid fans are going to say Real Madrid.
We do not know who is going to win it because it can go to both teams.
Those fans are biased therefore if you really want to know who is going to win then ask opinion from a non biased fans. Im neither of those team's fans and I do think that real madrid is going to win this season, zidane was great last season despite that he was only managing the team for only a few months