In my opinion the best option is Separatists with General Whorm Loathsome for Twin Attack. You can throw in San Hill for activation control, and possibly squeeze a Lancer in.
EDIT: This is roughly how it would look:
Zuckuss and 4-LOM36 Darth Sidious
34 4-LOM, Droid Mercenary
34 Zuckuss, Bounty Hunter
30 IG Lancer Droid
20 General Whorm Loathsom
12 Gha Nachkt
10 San Hill
7 R7 Astromech Droid
3 Ugnaught Demolitionist
14 Mouse Droid x7
(200pts. 16 activations)