Love this. EM, DB and Kat are the main ones I was looking at as well. I have an EM/EA Stalker, so I might be leaning towards DB or Kat mixed with either /Bio or /EA. It seems it will come down to if I want the added damage or dual blades, or the added survivability of katana. Is there an optimal attack chain for DB that you have?
I know Katana's optimal attack chain for damage completely ignore Divine Avalanche. That being said, I hear that power comes in quite handy when trying to solo difficult content. I think @Linea swears by Kat/Bio Scrapper.