As an energy storage system, will you prefer 48V 100Ah or 51.2V 200Ah lifepo4 battery?

At present, residential electricity consumption mainly includes: power grid purchase, PV installation only, PV distribution with storage. The core of PV distribution storage is the Battery Pack, which is mainly responsible for storing and providing electric energy. BMS mainly responsible for monitoring and evaluating the status of the battery, controlling, protecting and balancing the Battery Pack. As an energy storage system, which do u prefer?48V 100Ah or 51.2V 200Ah lifepo4 battery?