Powers v7 Forever - The ending was a bit anti-climactic but the arc (on the whole) was great. I especially love how the ending ties in a scene from the first Powers collection: Who Killed Retro Girl? and fills in much of the back story of Christian Walker. Not only does it tie into the scene from the first story arc it also gives it new meaning.
I went back and flipped through WKRG? after finishing off Forever. What struck me the most was how much the artwork changed in between the two story arcs.