Here's that Coldplay sounds just like Sum41 song.
If you don't believe me, fade the left and right speakers in and out ( In the left channel... "The Scientist" by Coldplay. In the right channel... "Pieces" by Sum41).
Doesn't mean I don't like Coldplay, even if he is another whiny British fellow. Just means there's only a handful of pop chords to work with.
When I get bored I listen to Eastern music, which has a completely different grammar. Gives me hope that there is somewhere else to go creatively.