Worst - Current one. Absolute crap. Everything I hate about current pop music. Manufactured, soulless, no meaning, corny, cheesy lyrics etc..
To be loved is a decent track, but it was dated and didn't really fit with a wrestling show. Everything that needs to be said about Nickleback, has already been said. Many of their songs make me feel sick.
I really like the Pennywise track that they are using to promote WWE 13, Revolution. That would make for a good Raw theme.
the Nickelback one was great compared to Papa Roach, and Roach is good compared to the current pile of shit. Nickelback might not be very good, but that particular song fit better to open Raw than the post Raw 1000 shitpile of music. I actually deliberately miss the opening often now to avoid it.