Talk:Enchantments/@comment-85.118.80.163-20180529111139/@comment-25669516-20180529143234

If you scroll down a little, you will find this exact question answered in detail by Anon421. In short, medium recipes are a level up from their simple counterparts and will be more effective at max level because they have higher power. But depending on the situation you may want to get a mixture of the two for your equipment (for example, a simple recipe on armor but a medium one on weapon etc).

See Anon421's comment for a full explanation.