Miller says picking a top comic is nearly impossible because of the Loot Crate effect on the Big Trouble in Little China/Escape From New York comics, the effects of returnability and more. The #2 book is Civil War #1, but the periodical list is probably the shakiest, so it’s really a shame Diamond didn’t release their traditional chart.
However the top GN was easier to calculate and it’s Saga Vol. 6 with an estimated 47,968 copies ordered.
I don’t have time today to dig into these figures, provisional or not. However for you chart watchers, the Beat will be publishing Brian Hibbs’s annual Bookscan chart and updating the archives on all those columns.