Winterizing: blow-out vs antifreeze for longer term storage?

If you blow out the water there is nothing to freeze. Used both methods - blowing probably takes a bit longer but it allows you to get on the road quicker as you don't have to purge the pink stuff from the system. Just remember the small valves are the problem points with either method - you have to make sure that things like the toilet valve get properly purged/winterized.