Types to Fire on Enemies:

Angel - Explosive
Blood - Thermal
Drones - EM
Gurista - Kinetic
Mercenaries - Thermal
Mordus - Thermal Kinetic
Sansha - EM Thermal

Damage Types Dealt by NPCs:

Amarr Navy - EM / Thermal
Angel Cartel - All Types
Blood Raider - Thermal / EM
Caldari - Kinetic / Thermal
Gallente - Kinetic / Thermal
Guristas - Kinetic / Thermal
Minmatar Fleet - Thermal / Explosive
Mercenaries - Kinetic / Thermal / Explosive
Mordu's Legion - EM / Kinetic / Thermal
Rogue Drones - All Damage Types
Sansha's Natio
* (Faction) Burrow / Drone Collection (lowest)
* (Faction) Hideaway / Drone Cluster
* (Faction) Refuge / Drone Gathering
* (Faction) Den / Drone Gathering
* (Faction) Yard / Drone Surveillance
* (Faction) Rally Point / Drone Menagerie
* (Faction) Port / Drone Herd
* (Faction) Hub / Drone Squad
* (Faction) Haven / Drone Partol
* (Faction) Sanctum / Drone Hord

http://cerlestes.de/eve/explained/