I was never really a big reader of CrossGen, the short-lived, high-profile comics company that flamed out in 2004 and whose assets were subsequently purchased by Disney. I picked up one or two of their early launches, but those didn't really grab me, and the only series I read for any length of time was the Victorian detective book Ruse, which I stuck with until writer Mark Waid left. I also have the entire run of the creator-owned series The Crossovers that I picked up at a 10-cent sale, although I haven't gotten around to reading it.
Both series play to the writers' strengths, too: Carey does a great job of combining the fantastic with the everyday in The Unwritten (and did the same with his underrated Crossing Midnight), taking as much care with character relationships as he does with mythic world-building. Sigil starts out with a fairly standard set-up, as a misfit teenage girl is picked on at school only to find herself manifesting strange powers and transported off to an unfamiliar world (one lifted from another old CrossGen book, El Cazador). The first issue mostly just sets things in motion, with a lot of vague references to secrets in the main character's background. Teenager Samantha Rey is a bit generic right now, and the issue ends just as it feels like it's getting started, but it has promise, Kirk's art is appealing as always, and I trust Carey enough with this sort of material to keep reading.