This year looks set to be a year in which Bayern Munich can easily win the championship. They're good enough to easily beat any team, regardless of strength or weakness. Dortmund and Bayer Leverkusen, on the other hand, look poised to disappoint this year. I felt this particularly strongly during Bayern Leverkusen's matches. It looks set to be a relatively easy season for Bayern Munich.
Dortmund and Leverkusen are not even a threat to average teams in the Bundesliga, neither do they pose a threat to Bayern Munich. Leverkusen are fighting to build progress, it will be a long process of attempting differents things in the squad before actualising the right balance, and by the time of settling they must have lost necessary points that will keep them away from title contenders.
Bayern Munich are going to win Bundesliga confidently, Dortmund or Leverkusen may not settle in 2nd position because i see more serious teams performing better than them, what is worth fighting for is a Champions League position not the title.