Actually, them both... Rock Band splitted guitars on two stereo tracks, but on places when they are playing mostly the same notes both guitars are on 1 track. I splitted them as far as I could, however, the result is not perfect. For example (you can hear it mostly only by using headphones): 0:35 - DuWall just holds fingers on frets, Cantrell adds a few bendy notes 0:49 - DuWall plays the chorus, though we still can barely hear feedback of Cantrell's guitar 1:52 - DuWall plays the rhythmic pats, but Jerry Cantrells adds more solo-sounding bare-tone fuzzy guitar track. 2:06 - There is no information who played the acoustic guitar, but I suppose it was Cantrell 6:03 - I suppose solo tracks was played by Cantrell
