What do you guys think? (24x26 unheated detached garage.)

OSB is about 3-4 bucks cheaper a board, but pretty ugly. I think I'd still have to paint both anyway.

Since I have 9' walls, I thought I could get a few sheets of aqua board cut to strips to run along the bottom for added moisture protection. (Previous owner who built garage never installed sill foam, so I sometimes, get a little water between the sill and the pad during heavy rain, although I plan to use a bead of caulking under the sill to help alleviate this.)