I really don't understand why people are hating on this wonderful just because it sounds too poppy. To me this a well written and crafted song that tells a great and powerful story. It gave me goosebumps the first time I heard it. After listening to the 30 sec clip of the song the other day I knew it would be a GREAT song. It reminds me of Lost! and it definitely is one of my favorites already, and I've been a Coldplay fan for a long time.
I also don't understand why people are so angry because Rhianna is featured on Princess of China. Chris Martin and co. know what they're doing. I know they don't usually do this unless it's just Chris M being featured, but I'm sure it fits what the album is trying to convey. I don't think they would do it otherwise.