Most people will be more confident of Barcelona winning because it is about the opponent that Barcelona will face, Osasuna. Everyone can see that Osasuna is a team that has not developed well this season so it is clear that it will not be difficult for Barcelona to win at home when hosting Osasuna. Moreover, Barcelona are also quite aware that the match is to create a gap in points with Real Madrid so the home team will not ignore that opportunity this weekend. So those who hope for Barcelona to win I think it is very logical because considering their opponent is not too strong.
Osasuna is not in good form. On the other hand Barcelona is in their best form at the moment. Now Barcelona can easily defeat any strong team. The players are very confident and capable of performing well.
However, Barcelona lost 4-2 in the last match against Osasuna. Barcelona will definitely take revenge for this defeat. I have seen that this season, against the teams against which Barcelona lost points in the first match, Barcelona has performed well in the second match against every team. In this match, Barcelona will definitely secure 3 points and win by a big margin.