Definitely post rut.
I personally like hunting this time as the bucks can be found alone, within close proximity to does. Often they don't have a harem with them = less eyes and ears for the final stalk. Later in the year also increases the liklyhood of snow making spotting, stalking, & tracking that much easier. Also around thanksgiving, so a long weekend to hunt, not having to take much additional time off! Best time to hunt them to me! Good luck out there.