Union Berlin and Borussia Dortmund will be the most interesting matches while Bayern Munich and Freiburg are not very interesting because it will be easy to predict that Bayern Munich will lose again, while in Dortmund vs Union Berlin it will be more interesting because they have a very strong team and took first place at the top of the standings.
You cant say its easy to predict the game Bayern Munich against Freiburg as both teams have a good start and performance at the moment.
Its really hard to say who will win this game as also both Teams are playing in international Cups too.
For sure the most interesting match will be Dortmund and Union Berlin and i will be place my bet on Dortmund this time there.