At the rate Supernatural is going, Sam and Dean Winchester will probably be fighting monsters, angels, and everything in between when they’re gray and using walkers (but you know they could trick out a walker or wheelchair with creative hunting gadgets). The brothers aren’t in their advanced years just yet, but as we head into the twelfth season of The CW drama, it seems like a fine time to look into the past. Since Dean told Sam, “Dad’s on a hunting trip, and he hasn’t been home in a few days,” the Winchesters have battled with bizarre phenomenon on a spectrum of scales, small and biblical. But which of the 11 seasons stand out as the strongest? We rank them from worst to best below.