IMO, every member of the band is among the top 5 - 10 in the world on their particular instrument...with the possible exception of James LaBrie. He's pretty good, but with the rest of the band at a stratospheric level, sometimes I wish for better vocals. Geoff Tate (Queensryche) did the vocals for one D.T. song at the concert. That was absolutely incredible! Swap Geoff in for James and D.T. would be absolutely perfect.
Good point about LaBrie. I love watching John Myung play that seven string bass.