Hey, X.
If Frank Zappa and Opeth never existed (terrible thought, pardon me for saying it) then Devin and Dan would be in competition for my favourite artist ever. I'll give you a quick Devin run-down... (I have to promote my hometown artist):
Strapping Young Lad - his first "band", kinda a cyber-deathmetal feel, sorta like Fear Factory on speed, but better and more melodic and interesting. Check out their second, the "City" record... the first one "Heavy as a Really Heavy Thing" wasn't all that memorable.
Ocean Machine - Melodic hard rock... loosely based on a concept of what the Ocean would sound like if set to music. Flowing, very encompassing, lots of big chords, big melodies, lots of keys, a sprinkling of samples, and very very epic. My favourite by far.
Infinity - Very very odd. Best comparison I can make is to the Cardiacs (ask Lee_B about this). Many crazy layers of music, very very intentionally "over"-produced. Devin gave himself a nervous breakdown obsessing over this record (it took, like, a year to make), and it shows... it is quite insane.
Physicist - Speed Metal Pop songs. Something Devin did between Infinity and Terria to kinda recover and because he was bored.
Terria - Not sure yet, just got it. Kinda halfway between what Infinity "blown up" (as Devin put it) would sound like, and Ocean Machine (the concept being Terria is to earth what Ocean Machine was to water). I like it thus far, that's for sure...
Like Mikhail Capone said, though, it's hard to nail Townsend down in just a few tracks as all of his projects are all pretty different and all very album-oriented.
http://artists.mp3s.com/artists/240/devin_townsend1.html
Listen to "Life" from Ocean Machine (kinda what would be the radioplay single from that record) and Bad Devil from Infinity (it's interesting... kinda like metal meets 40's swing music or something)
for more info...
http://www.hevydevy.com
(this post was sponsored by HevyDevy Records)