Which is the World's Largest Church?

Strangely when I tried to find the answer to this I couldn’t get a clear cut answer because the term “Largest” is vague. As per Wikipedia-List of largest church buildings in the world;

"Largest" is at best a vague term, which is often not qualified by claimants. Accepted measures of largeness could include area, volume, length, width, height, and capacity (although the latter is far more subjective). It is important to note therefore that churches may claim to be "the largest" based on only one of these measurements; and thus that there may be several churches have equal claim to be the "nth largest church". Since there is no official body governing these claims, there is no generally accepted criteria for being "the largest church".

For many centuries St. Peter's Basilica in Vatican city was considered to be largest Church in the World and it still is the “Greatest” but a search on the Internet yields names of three churches, two in Africa and one in South Korea, which are claimed to be largest.

These three churches are;

1. Basilica of Our Lady of Peace in Yamoussoukro, Côte d'Ivoire (Ivory Coast)
   
2. Tabernacle, the headquarters of the Living Faith Church Worldwide (aka Winners' Chapel) in Ota, Ogun State, Nigeria and
   
3. Yoido Full Gospel Church, Yeouido Island, Seoul, South Korea
   

Since this is a travelogue I will not go into the controversy as to which is largest.

St. Peter's Basilica is World famous and every one knows about it so I will not cover it here but will cover above three churches one by one in my subsequent posts (not necessarily consecutively). I also seek readers comments/opinion regarding this.