There's little that Casey has written that I DON'T enjoy immensely (WildCATS 3.0, sadly, was pretty much the only incarnation of that book that I didn't like).
Take, for instance, The Intimates.
There's a few themes that Casey seems to touch upon in virtually everything he writes, and this comic contains most of them -- namely, the self-destructive nature of teenage living. Often one of the most tumultuous periods in a person's life, blah blah, but this comic, set at the Seminary, a school for budding superheroes, is for you if you were ever or ever plan on becoming a teenager. There's a lot to love, including the fantastic art by Giuseppe Camuncoli (below; cover above by Jim Lee)
Furthermore, almost every page has an "infoscroll" at the bottom, featuring facts and statistics relating to the stuff on the page, background information on the characters, etc. One of the first things that gets mentioned at all in the series is that information isn't restricted at the Seminary, and it isn't in the comic, either -- you're constantly assaulted with more information, which is something that both tickles my fancy because I'm a huge nerd like that, and serves as a commentary on the information age.
Like a lot of cool comics, this one didn't last, being canceled with the 12th issue, but it remains a favorite of mine.