That's deadly, I'd like to see them live, even though I'm not a big fan I do think the best way to get into a band is by actually seeing them.
I used to laugh when my friend would talk about them. He'd occasionally just go into rants about the fibonacci sequence and this particular order of songs in an album which is the "secret" way to listen to it.
I just always listened in order. They put them together the way they do for a reason. Tool is a very intelligent band. They will change timing and key randomly but in a way that is amazing.
But everybody has their own likes for sure. I have always been a Tool and A Perfect Circle fan.