Whether or not strength training is better than cardio mostly depends on your fitness goals. Although it is generally true that cardio training is better for weight loss, while resistance training is better for muscle building, most research recommends a combination of the two. Additionally, at the medium level, moderate weight training corresponds with moderate cardio activity when it comes to the level of physical intensity. Ideally, you want to combine both exercise methods while putting more emphasis on the one that corresponds better with your goals.