I think it all depends on your training history, and goals, 5x5 will put on size and strength so long as you eat in a calorie surplus. It is also great for someone looking for a beginning routine. It is also great for conserving strength and size while cutting. But like bu24 says wendlers 531 is a really excellent routine that allows you to add cardio, add assistance work, and kind of mend it towards your specific goals.