Analyze the guitarists he has had for THe Dio band. I'm in a Dio tribute band and I'vebeen going back and listening to some of the lesser known stuff in the catalog. First it struck me how much Goldy sounds like VIv on some of the solos on Dream Evil. I actually like Dream Evil.
Then I actually like some of the work of Rowan Robertson. He had kind of an ols chool vibel for a young kid. Good stuff.
I wasn't a huge fan of the Tracy G. stuff when it first came out but going back and listening to it now I'm much more open to it. The guy could definitely shred and I liked his sound it was just his note choice that turned me off but going back now and listening to some of the stuff on Angry Machines, its pretty good and its interesting musically. A little more progressive, some odd meter stuff.