Continuing on the theme of DT hypotheticals...
I've always been a big fan of bands that sport a twin-guitar attack, a la Iron Maiden, Metallica, Megadeth, Queensryche, Judas Priest and Redemption, just to name a handful.
Not that it's likely to happen, but if DT ever went to a 2-guitar format, which guitarist would you like to see JP trading licks and riffs with?