Not just guitar, but anything...
For guitar I would choose Inferno, because the song just rips and its full of riffs that are fun to play, especially the opening. That in itself is such an outstanding picking excercise, because it is fast but not blazing. So it forces you to be REALLY percise. The solo also tests your Romeoesque string-skip tapping chops.
For Drums: Probably King of Terrors. It's just hard driving and its fun to play. (well, I would imagine so anyway, I haven't touched a kit in a couple years)
Vox? Dunno, I don't have half the range that Russel does so I give up.
Keys? Don't really play keys except for some midi sequencing stuff.
Bass? Probably Awakenings since the song features the Bass.
For guitar I would choose Inferno, because the song just rips and its full of riffs that are fun to play, especially the opening. That in itself is such an outstanding picking excercise, because it is fast but not blazing. So it forces you to be REALLY percise. The solo also tests your Romeoesque string-skip tapping chops.
For Drums: Probably King of Terrors. It's just hard driving and its fun to play. (well, I would imagine so anyway, I haven't touched a kit in a couple years)
Vox? Dunno, I don't have half the range that Russel does so I give up.
Keys? Don't really play keys except for some midi sequencing stuff.
Bass? Probably Awakenings since the song features the Bass.