Considering the result of Barcelona vs Bayern Munich head-to-head match, Bayern Munich team should be ahead in this match. However, in football, the favorite team cannot always be selected by considering the statistics. Both Bayern Munich and Barcelona are very strong teams.
But one important thing is that we have not seen Bayern Munich team play well in the last few matches. Munich share points with Leverkusen and Frankfurt in the Bundesliga. Munich was defeated in an away match against Aston Villa in the Champions League match. So it will be very difficult for Munich to win the away match against Barcelona. Also let's not forget that the coach of Barcelona is now Hansi Flick. Hansi Flick has a good idea of Munich's overall gameplay.
There's a huge propensity that this season's results from Bayern Munich vs Barcelona clash won't be determined by previous head-to-head matches but on current form and performance. A lot have changed for both team's lately. Both with new head coach with different playing strategies and tactics and for Barcelona especially, there has been a massive improvement in the team and individual players under Hansi Flick watch.
We have to replace the H2H with present performance rate if we are to pick out which one of the two sides is gonna be favourite in that match. Barcelona has won 4 and lost 1 in 5 of their league games and are unbeaten in their two games in the UCL. Meanwhile, Bayern Munich have won 3 to draw 2, and with a not too good result in the UCL with that 1:0 loss to Aston villa after beaten Dinamo Zagreb 9:0 at home. The stats here favours Barcelona to the favourite but still I won't bet on it because these two teams are big Kong's and anything unpredictable can happen.