Not to contradict what I said earlier, but after listening to some more Tool stuff lately, they are pretty much equal in my eyes. Tool's videos though have to be some of the craziest if not best videos ever made imo. Especially the video for Parabol/Parabola. It starts out so slow with Parabol, then kicks it up a hundred times over when Parabola starts. Especially at the end of Parabola, when in the video, the eyes of flame start to go into the guy and you see all of his insides and the "third eye" of his mind (i think) opens up. While I do like APC overall sound better, I think Tool is much more imaginative in their album art. Take a look at Lateralus's insert. Its pretty much my sig, but each page is a different layer to the guy, very cool imo. So after listening to both, I like APC for their sound, but Tool for their experimental sound and innovation in music.