Pending on your budget.You can't go wrong with the Diana 34.You can't go wrong with any of the HW springers,but more expensive(lifetime keepers though).Some of the Chinese models are good,but are diamonds in the rough.You'll need to do some tuning on them.The Ruger is a Chinese made break barrel.Don't know about the Winchesters though.You can check out the prices at Specialty Shooting Sports(online store) in BC.Great people to order anything airgun related from.Very helpful and they will do an inspection and shot test before sending it.
Walter