I'd say, I'm an experienced guitarist/songwriter (10 years), and in my opinion, Zakk Wylde has a more aggressive sound, and ripps it up... He has the better writing style of the two, but Yngwie IS faster. But then again, faster isn't always better... and of course, this subject is all about opinions. My favorite guitarist is Zakk, but others would disaggree. I read an interview with Zakk Wylde and Dimebag Darrell in Guitar World magazine, and they had their opinions on the better guitarist. They were talking about Damageplan, and Zakk was saying great things about Dime, basically saying he's better than Zakk, and Dimebag said the same about Zakk. That just goes to show you that it's all in opinion, but also, in reality, there's no "better" guitarist. Every guitarist is CAPABLE of playing exactly like Yngwie, Zakk, Dime... You just have to work at it... and then the writing comes in to play. Zakk just pushed himself to play the way he does. I'm sure you guys remember the first time you picked up a guitar. My neighbors do. They said I sounded like poo... Then they heard me about 2 years later, and said I'd "figured that thing out". I'm capable of playing like Zakk, but I can't write something off the top of my head whenever I want to that sounds like something he'd write. It has to come at a certain time. I have to be in a certain mood. Anyway, I'm rambling. Later