As a matter of fact, that depends on what type of contact lenses you are gonna buy. Typically, the quality of daily contacts is inferior to monthly ones because people are going to dispose of them after use. And monthly contact lenses are generally much stronger and are supposed to be used for rather a long time, thus the quality cannot be bad. There is no one who can tell which one is better, because that depends on your personal needs. But, personally speaking, daily contact lenses are better, for they are much cleaner and help to keep your eyes healthy!