I mean comparitively. Playing actual Classical music on a guitar is much more difficult than neo-classical. Flamenco is a much more difficult style to master than shred. Of course shred, progressive and jazz fusion are probably the most difficult styles to play technically with pickstyle, though.
I'm not saying Yngwie is a bad guitarist, he's definitely innovative and one hell of a player, but he can't compare as a guitarist to people like Paco De Lucia or Lenny Breau, or even Steve Morse. His work with Steeler was pretty tight, too, "Hot On Your Heels" is one of my favorite Yngwie solos.
And not every guitarist who plays fast is an Yngwie clone, Satch has a completely different sound, as does Buckethead, Nuno Bettencourt, Paul Gilbert, Steve Morse, etc. A lot of the licks Yngwie uses can be heard on Al Dimeola's debut album, combining what Van Halen and Dimeola had already done for guitar, I wouldn't say Yngwie invented shred.
I have a few videos up, most are old and I REALLY need to re-record them.
Here's my cover of the solo from "Alone In the Dark" - Testament:
http://youtube.com/watch?v=hLwcTIbqMn8
I'm going to upload Far Beyond the Sun and the Souls of Black solo soon, too.