Thanks Overcast!
Plankton, Arch Enemy somehow (almost) always manage to fit in very melodic guitars in the general fury of their music - oftentimes lingering on various minor scales of course. Love the way they create themes with the guitars.
Like the part on Ravenous which makes you want to sing along as loud as you can, or why not Silverwing which is almost all melody.
While the technical mastery of Michael Amott may be disputable he's definitely got an ear for catchy tunes