To me...different people.
Scotti Hill and Dave "the snake" Sabo of Skid Row are forgotten to often, especially when it comes to pinched harmonics. In general great riffs (I love their style), but the solos are just so amazing to me, with the pinched harmonics just in the right space.
Tim Millar and Luke Hoskin of Protest the Hero are not only very fun and insanely nice guys (all of prostes the hero signed the headstock of my Ibbie S, which is just soooo very amazing to me) and are part of one of my favorite bands (their Kezia album is one of my favorite ever by anyone), but very good guitar players, especially when you concider their age.
The music they create by using interresting rythms and scales with the lead work and tapped riffs of Luke over the jazzy high gain chords of Tim...wow.
Trent Reznor of Nine Inch Nails is also often forgotten and what a shame. He is not a technically great guitar player, but his work with sounds and using the guitar outside the box of what we usually hear is, at least to me, bloody good.