Gotta do the cookin' by the book or that shit will turn out crazy...

** Damage types ***
Guristas - Kinetic / Thermal
Serpentis - Thermal / Kinetic*
Blood Raider - Thermal / EM
Sansha's Nation - EM / Thermal
Angel Cartel - Kinetic / Explosive / Thermal
Minmatar Fleet - Thermal / Explosive
Amarr Navy - EM / Thermal
Mercenaries Comander/Over Lord - Kinetic / Thermal
Mercenaries Wingman Some Named - Explosive / EM
Angels/Gist - All types of damage
Blood raiders/Corpus - EM / Thermal
Guristas/Pith - Kinetic / Thermal
Sanshas/Centurian - EM / Thermal
Serpentis/Core - Kinetic / Thermal

***Best Damage to NPCs***
Guristas - Kinetic
Serpentis - Thermal
Mordus - Thermal & Kinetic
Blood - EM & Thermal
Sansha - Thermal
Angel - Explosive
Mercenary - Thermal