Okay... it's not easy to tell since I've heard cbi, ms and fire first...
But after listening to every song once I would still say:
Fire is my favorite DBS-Track!
Why? Well... I don't know but two days after the concert I woke up with this song running through my head... I sounds special... i never heard a similar song. Also it's not to fast and not to slow and I like the beginning... it reminds me a little bit on U2... maybe that's why It's my favorite one... yet!