Michael Amott from Arch Enemy. His style using wide vibrations and wah pedal, and, of course, the leads. He has written many good songs and i've been hooked to Arch Enemy as far as i remember.
John Kempainen from The Black Dahlia Murder. Since i got Miasma album i've been hooked. He uses a lot of traditional tremolo picking and almost no sweeping and tapping. And he has Finnish last name
