The winner is........LiFePO4. Why? Tesla does not mass produce a hydrogen fuel cell car. ****, nobody does.
Why is Hydrogen fuel even still discussed ? Political economics. The largest deposits of lithium in the world are #1 Chile and #2 you got it, China. Commodities will always be politicized for economic gain.
Also, the latest and greatest chemistry will be lithium/sulphur with a higher power density than Li Ion. Sorry i went all geo political, it's just that time of year.