So I'm just now beginning to explore the possibility of playing Whisper with the Emperor. My natural playstyle is to like more ships on the board so my first list is:

Omicron w/Emperor
Whisper w/ACD, VI, FCS, Agent Kallus
Wampa
Backstabber

I've played 2 games so far and done well although I'm still learning Whisper. It has 4 ships which I like and it seems that neither of the 4 are great targets for opponents given that they probably don't want to turn their back on any of them.

I'm potentially considering a Whisper list for Store Champs. The prevailing meta in our area seems to be mostly dominated by 3 ship lists, usually some sort of Palp Shuttle/Fel, etc. or Rebel regen with Poe, stressbot, or Miranda, etc. Would the above Whisper list be better than say a Deci/Whisper build like:

Whisper w/ACD, VI, FCS, Intel Agent
Oicunn w/Palpatine, Engine, Predator, Darth Vader (anti-Fel)