Best damage to do to NPCs :
Angel Cartel Explosive
Blood Raiders Electromagnetic/Thermal
Caldary Navy Kinetic
EoM Kinetic
Guristas Kinetic
Mercenary Thermal
Mordu's Legion Thermal/Kinetic
Sansha EM/Thermal
Serpentis Thermal/Kinetic
The Syndicate Kinetic/Thermal
Thukker Tribe Explosive

Angel Cartel - Expl / Kin - 7%/9%/22%/62%
Blood Raiders - EM / Th - 50%/48%/2%/0%
CONCORD - Kin / Th - 29%/32%/37%/30%
Guristas Pirates - Kin / Th - 2%/18%/79%/1%
Khanid - EM / Thl
Mercenaries - Kin / The
Mordu's Legion - Kin / Th - 0%/30%/70%/0%
Rogue Drones - EM / Th
Sansha's Nation - EM / The - 53%/47%/0%/0%
Serpentis - Kin / Ther - 0%/55%/45%/0%
Amarr Empire - EM / Th - 47%/42%/7%/4%
Caldari State - Kin / The - 1%/48%/51%/0%
Gallente Federation - Kin / Th - 1%/39%/60%/0%
Minmatar Republic - Expl / Kin - 12%/7%/31%/50%