Why? Because Hans Zimmer and possessing natural and majestic orchestral tunes, took advantage of the nervousness of James Newton Howard to lay an incredible atmosphere music.
Not really melodies, the work is more about the intensity and rhythm. The music evokes in turn the torment, hope, or an incredible epic feeling. Perfect for dark thriller that is Batman.
As usual with Zimmer, tunes that seem simple, but so deep (universal) that it is hard to say no :)