Today is the 25th anniversary of the first Calvin & Hobbes strip. I still consider it to be one of those perfect utilization of a medium. No comic strip has ever been this good.
Looks like I'll be digging out my 'Complete C+H' books tonight and revisiting it all!
Agree 10000% with Eric. Calvin and Hobbes is still pretty much untouchable. I can't think of any other strip that's even approached its depth and brilliance.