Way ahead of you on all three. Great stuff all around. I almost mentioned Hitchhiker's Guide in my post at the top, but felt like it probably doesn't exactly qualify.
Nonsense, of course it does. I just finished all six books a month ago (the first five were re-reads, AND ANOTHER THING...was new to me), and enjoyed them. Why wouldn't that series qualify? Because it's a comedy, and therefore not "serious"?