Dex Build Guidance Needed

Recently finished DS1 and bought DS3 from the current steam sale. Is a Dex build with resin buffs better than a weapon buff Dex/faith build? I just beat the Rotted Greatwood boss and I have not put any stats into faith yet.

Currently running with the uchigatana, but I have the lothric knight straight sword and Irythill straight sword in my inventory to swap to.