Thought it was definitely Top 5 of comic book movie of all time, perhaps the greatest MOVIE, because it was a movie based in a comic book world (or more accurately, worlds since it pulls from a few different comic series). I'm not sure I would call it my favorite though. Tremendous performances by Jackman, Stewart, and Dafne Keen. I thought Stephen Merchant (Caliban) was phenomenal as well. Having read the x-23 comics, I was disappointed in how they interpreted Zander Rice.
None-the-less, absolute brilliance, with virtually no flaws.