It is quite fair to assume that Bayer Leverkusen may be a more dangerous opponent because Dortmund can turn on clown mode at any moment and lose points where no one could have predicted. Already now Bayer is rated better than Dortmund (but still too far from Bayern):
Fc Bayern Munich 1.25
Bayer 04 Leverkusen 7.50
Borussia Dortmund 11.00
It's funny that Bayer and Bayern have the same goal difference: 23-6
It is the classic odds by bookmakers for Bayern Munich. I will give them that as well because they are really the favourite for the league title by far. Their being at the third position now doesn't change anything for them. They are stronger than last season and the Kane transfer has been very beneficial.
Leverkusen and Stuttgart are doing really well on one hand maybe. But I would expect Stuttgart not to last very long. However hopefully Leverkusen can manage to stay in this race until the final moments. If Dortmund did it with a worse level of performance Leverkusen deserve to do this more than them with this game now.