I very much agree with your opinion. Even though Leverkusen currently leads the standings, we can see that Munich has a winning mentality and is a good team. You can see last season where they ultimately became champions even though they had the same number of points as Dortmund. Leverkusen has played quite solidly this season, but for me the presence of a world-class striker will really have a big influence on the team's consistency in playing in the League.
Basically Leverkusen is a mediocre team in Bundesliga they even still lose from the financial and popularity compared to Dortmund but Xabi Alonso was make this team playing with very consistent this season and last summer Leverkusen didn't spend a lot of money to buy the players but their transfer was very effective because new players just like Victor Boniface or Granit Xhaka can able to adapt quickly with Xabi Alonso strategies especially for Victor Boniface currently he was Leverkusen top scorer with 10 goals in bundesliga
The rally looks very interesting for each weeks because whether it Leverkusen or Bayern Munich can able to displayed consistent performance and if we talking about the mentalities between these teams i think they are equally strong and finally Bayern Munich gets decent opponent for race title so i am looking forward to see which team who can able to managed their consistency until at the end of this season however after Christmas break both teams will faced easy matches because Bayern Munich will faced Hoffenheim and Leverkusen will fight against Augsburg so i am confident they can able to beat their opponents easily
Indeed, previously Leverkusen was like an ordinary team, but this season Leverkusen has experienced very significant changes, unlike the previous season. Which made Leverkusen experience improvement because of Xabi Alonso's tactics, which succeeded in implementing a strategy that was suitable for his players and Xabi Alonso's recruits were able to work together well. like Victor Boniface, moreover Xabi Alonso's tactics don't just rely on one striker like Bayern Munich which relies on Harry Kane so even though Bayern Munich is still a very strong rival in the Bundesliga Xabi Alonso will prove that he is a coach who can bring Leverkusen to the title and break Dortmund's dominance and Bayern Munich.
Bayern Munich and Leverkusen are still performing consistently up to now, but Bayern Munich has experienced 1 defeat, but this has not at all discouraged Bayern Munich from continuing to put pressure on Leverkusen at the top of the standings, and it is true as you said that after this Christmas holiday, Leverkusen and Bayern Munich will face a club that is not too tough, allowing both of them to continue to add to their points collection