Dont underestimate arsenal, they are now much better then they used to be and bayern munich is no longer having pep as their coach so things will change. Arsenal might win with a split of hair against bayern munich , we wont know the result because arsenal is quite good in their home game this season
Yup. And let's also point out that Bayern Munich under Ancelloti will be a far cry from the Jupp Heynckes era. Pep himself wasn't able to replicate it. This will not be a Bayern that has so dominated the Bundesliga for so long and has reached the CL quarters easily. With the emergence of RB Leipzig, I think they would have to dig deep and think how uncertain their number one position is in the league.
Out of three draws vs Bayern in 5 years, I like their chances to go through the KO stage this year. But one advantage Bayern has over Arsenal is the winter break. The EPL has none.