I bought the essential steve morse.
But I have to disagree with you about morse. He is extremely exceptional but I think that Vai and Satch just have something else. However, you are right about Petrucci being close but no cigar to morse. I think that Petrucci will jumo in leaps and bounds due to the new G3 tour with Stach and Vai.
I love to see G3, more than Iced Earth, or DT, or Planet X.
With the following line up, I think that you would agree:
Steve Vai:
Billy Sheehan
Virgil Donati
Joe Satriani:
Jeff Campetelli
Stu Hamm
John Petrucci:
Mike Portnoy
Dave LaRue.