I've got a '10 Ride Antic 162 wide, what size would be the best for me?

You should def go for the biggest they have, so im guessing a 165. I ride a Rome Machine 154w and I have a 165 bag. It fit everything I needed, gear wise, in it, and still had some space left. I fit boots size 12(in exterior pockets), jacket, pants, goggles, gloves, helmet and tools, 2 decks(154,158), XL bindings(not mounted) and still had a lil play. Its def a good buy as I have been on a few trips and there is VERY minimal wear and tear. So go for the 165 just to give you a lil room