I gotta say that evh first album was the one that totally blew me away.
I can still remember going over to a friends house and he threw it on and I was totally dumbfounded.
First thing I did next day was go out and buy my own copy and a Marshall stack, then spent 2 years learning how to play it on my Lloyds turntable on 16rpm trying to figure it out. I finally got tickets to their show at Maple Leaf Gardens (back row up against the wall with a pair of my dads binoculars that kept steaming up). I spent the whole show waiting to see how he did the tapping part and by the end of the show it was so hot I was sweating my butt off.
It was worth it though cause it was the only way I could figure out how he did it.