Wow, just so many. Even if someone isn't on my faves list I enjoy listening to them and trying to learn a little something. Maybe they're all favourites, just a bit further down a gigantic list. But up at the top of my list:

Nuno Bettencourt

Joe Satriani

Steve Vai

Guthrie Govan

Steven Rothery

the Hawkins brothers (The Darkness)

Francis Dunnery

Neil Schon

Reb Beach

Marty Friedman

Paul Gilbert

Steven Wilson

Steve Lukather

There's loads more. Basically, anyone that's better than me 😄