I ran across a video the other day that presents an extensive analysis and comparison of LiFePO4, AGM and Flooded Lead Acid batteries in terms of performance, cost, capacity, etc.
The presenter, Tom Morton, is an electrical engineer and the analysis presented in the Youtube video is an engineering oriented analysis. As such, it is packed with numbers, graphs, etc., is fast moving and may not be for everyone. Those with a mathematical/analytical/engineering bent will most likely love it whether they agree with him or not.
I'm sure others are familiar with his and his wife's Youtube channel and blog, "Mortons on the Move" but they're new to me.