U2 is one of my all-time favorite bands and to hear Bono say the band is only good and not great is a little heartbreaking. They are a great band and when other bands have come and gone, they're still here!

This year marked the 20th anniversary of their Achtung Baby album. With this, it got the band to thinking about their future. Bono explains why he feels U2 are still not quite good enough

U2 have said they may record a new album in 2012, but nothing has been confirmed. A big highlight of 2011 was their 360 Degree World Tour. According to NME this was the highest grossing tour of 2011 by brining in $293 million. The tour had the band playing 44 sold out shows that was attended by more than 2.8 million fans.

Now, there's a reason why they are a great band and just not good! What would be your all-time favorite U2 song?