I've only heard 2-3 songs by alterbridge so can't really make a statement....but creed seems to be the better one.....Tremonti said in an interview that alterbridge is more hardcore ....????
creed were on the verge of making some classic albums but as things in life goes !! all good things have to come to an end . their weathered album had showed the way they had matured and grown as a band. sad to see them break up at that stage. But the thing is the sound of Alter bridge is almost like Creed ( the only diff is that the vocals are different)