I saw a Dave Mustane interview on "LOUD" here in Canada last year and he was talking about the shitty state of music today. He mentioned Anthrax at least 2 or 3 times and how they are one of the bands out there consistently pumping out solid records.
So I say Gigantour.
He's also dropped a few turds in his time imo but, I have no need to give Ozzfest any more money so I agree with gigantour. The only thing redeeming Ozzfest last year was Maiden and we know how that ended.