As I interviewed friends and family, these were the most talked about. I broke it down by what subjects they teach, what grades, and the cost. If you want to know what others think, there is an awesome site called Homeschoolreviews.com. This is very helpful and does show many others you can look over, but as that can be overwhelming, I put together this smaller list of Christian-based Curriculum. Also, if you click on the name of the program, it will bring you to their homepage. Hope this helps!
What subjects: Language arts, Math, Social Studies, Science come in the set, then you can buy Bible curriculum, Foreign Language, Art, Music, etc., separately.
What grades: Nursery school through Senior year
Cost: $200-250 for children's set, more for parent guide