I gave my vote to Peter Wichers and Ola Frenning of Soilwork. I love their shared leads the most and they have great melodies and hooks. The backing riffs/rhythms on the solo's are so awesome. They have the gift (mainly Peter due to him writing more than Ola except I think on A Predators Portrait, Peter and Ola co-wrote pretty much every track) of writing such great melodic, catcy riffs. The way they switch leads and play together in perfect melody is so amazing. The Amott brothers are another great team. Even though Opeth is my favorite band, I couldn't cast my vote for them because Peter doesn't seem to get a lot of leads. He gets some leads here and there and he does play certain solos as well. I also really like the them of Jesper Strömblad and Björn Gelotte, too. Meshuggah's amazing with their odd time signatures, but they aren't as good as the others. Anders and Martin were an ok team, Anders seemed to have played more leads and I think all or most of the solos. The old In Flames team was pretty good as well, I believe. I only own Whoracle and I've heard about half of The Jester Race which I should be getting soon. Keep in mind, I'm judging on team work, not quality, because all of these teams keep a lot of ass.