I agree, CB is one of the best anime around at this time, it's full of action, comedy is at a maximum, Spike and Vicious' history was good to find out through the series. The music used isn't half bad at all.
Spoiler Warning! -Near end episode content described!- (that counts as a spoiler right?)
I love the episode near the end when Spike and Vicious are fighting in the church and Spike is throwing grendes all over the place, then the two switch weapons (through battle they lose thier weapons and pick up the others) and keep battlin it out. Then when spike is blown through the stained glass window and falls to the ground, the music was well used there i think. It's one of my fav. episodes of all time from all anime.