When I was working through Level I, I liked to begin with the Schweser “Concept Checkers” before moving on to the EOC questions. Sure they are easier, but if completed earnestly, they can help boost your understanding of the material and prepare you for the more difficult EOC questions.
Funny, I find it’s the opposite. CFAI EOC (in most cases) are easier as they go and cover almost everything the given chapter will teach you and sometimes have multiple exercises for the same formula or concept.
As well the curriculum is much better (detailed explanations, good background not just throwing the concepts on you like Schweser) only Curriculum is extreeeemely loooong.