Konan, 5 billion explosive tags @.@
It was 600 billion
Anyways, for the thread, Konan would lose. She has no chance against Kakuzu. People who's reasoning is "She almost beat Madara so she can beat Kakuzu" are morons. How would her explosives damage Kakuzu's Iron Skin?
It takes better logic than that to determine who has the edge in a fight. It doesn't matter who loses to who. What matters is what they can do.
Kakuzu can use Fire. He can burn Konan to death, literally.
Kakuzu can use Wind. He can tear Konan to pieces, literally.
Now unless Konan can use some elemental techniques, which we have never seen, I very strongly doubt she can beat Kakuzu.