Differences in voodoo and Christianity in Western Africa and Haiti

While before this post I had read a lot about Haiti and voodoo there, I assumed that the incorporation of Christianity into the voodoo religion was similar. Oh how I was wrong. There are some very big differences between voodoo practices in Western/Northern Africa and Haiti. For one, Western and Northern African Christians tend to be more Protestant than Catholic. This has a huge impact on how they practice and view voodoo in their lives. It seems (I want to look into this more) that Africans have converted to these Protestant religions (Lutheran, Baptist, etc) almost completely with very little evidence of traditional voodoo practices still ingrained in their society like it is in Haiti. They do have a ngonga or medicine man who helps heal people of the community in traditional ways (calling spirits, spells etc.). However, I have not found yet the intricate system of deities worshiped religiously (lwa) like there is in Haiti. One idea of why Africans have close to fully adapted Christianity is because freed slaves that converted to Christianity in American converted Africans when they returned from America. Instead of oppressive missionaries that told them to convert, Africans had people of their own ancestry introduce them into this new religion. Also, many missionaries set up schools where children were taught the Christian way in classes and therefore, they passed down their learned faith to their children. I believe this area, why Northern and Western Africans seemed to adopt Christianity into their lives more strictly than Haitians will be an important part of my paper.