Mine would have to be "Pull Me Back". Amazing structure, amazing guitar, amazing vocals :). Let me know what your favorite is! It can even be a song from Don't You Fake It, or before.
So far:
Lonely Road - Toally agree I freakin' love Pull Me Back but I'm sure there is going to be another song to replace it haahhaha. But I do also think that You Better Pray is possibly one of their best songs yet.
Don't You Fake It - Probably Misery Loves It's Company or Atrophy both hard sounding and amazing songs!
First EP RJA - Getting By or Angel's Cry. I just love the lyrics of both of these songs they're very close to my heart in many times in life.
And uhhh...Dats about it. XD
Oh, I also think that 'Pull Me Back' or 'You Better Pray' should be added to Rockband/Guitar Hero. They'd be SUPER RAD to play!!