I have to say that I prefer old Sepultura on albums, but I totally prefer the "new" Sepultura live. I mean, Chaos A.D. will always be my most favourite Sepultura album, but they were kinda boring live when I saw them on the Roots tour, while with Derrick, they totally blew me away. That being said I think that he's an average vocalist in studio, but much better frontman on stage than Max will ever be. Soulfly is just plain boring (save for a song or two), so is CC.