Over the years we've had horses, cattle, meat goats, hair sheep, guineas, ducks, geese, and chickens. Guineas are the hardest to keep alive, but they're easy keepers. In fact, I'd categorize all the poultry on my list as the easiest keepers, with chickens being so easy I sometimes wonder why I'm in the picture. Food deliverer, I suppose. Cattle are almost as easy as chickens. Plus they smell better, and their poop can be used to soothe wasp stings - and when it dries you can flip the pie over to find doodlebugs and scorpions underneath. I feel a lot of hardships with cattle can be overlooked just for the sake of the cow pie fun factor. Hardest to afford to keep would be horses - it's difficult to justify spending money on horses when tractors exist and our culture doesn't eat them. I'd say the hardest to keep, as in maintenance and whatnot, would probably be the meat goats. With hoof trimmings, worming requirements, mastitis, and mostly the fact that every other birth required intervention on our parts, it was quite a job. My mother decided to switch to hair sheep initially because she wanted something that had an easier time with birthing. The hair sheep are also less prone to parasites, but the destructiveness of the rams alone is enough to almost negate those positives. Still, I think goats are harder.