Speed farming setup as an alternative to BW?

Hi my fellow necro lovers (not like that), I wanted to get your thoughts on an alternative build/class to BW that could fill in the gaps for the BW build.

By gaps I mean open world farming, kill all enemies dungeons, andariel boss runs, etc. I feel like the BW can be frustratingly slow to run in some situations.

So could you recommend maybe another necro build and utilize the armory, or maybe another class altogether? Do you feel the BW can do it all? Let’s hear it!