Damage Types By NPC (in order of most to least):
Angels - Exp/Kin/Em/Therm
Blood Raiders - Em/Therm
Drones - Kin/Exp/Therm/Em
Gallente Navy - EM/Therm/Kin/Exp
Guristas - Kin/Therm/Exp/Em
Mercenaries - Therm/Exp/Kin/Em
Minmitar - Exp/Em/Kin/Therm
Mordus - Kin/Therm
Sanshas - Em/Therm
The Seven - Exp/Kin/Therm/Em
The Seven LV4 - Therm/Kin/Exp/Em
Thukker - Exp/Therm
EoM - Kin/Therm
Serpentis - Kin/Therm

Damage Types To Deal By NPC (in order of most to least effective):
Angels - Exp/Kin/Therm/Em
Blood Raiders - Em/Therm/Kin/Exp
Drones - Em/Therm/Kin/Exp
Guristas - Kin/Therm/Exp/Em
Mercenaries - Therm/Exp/Kin/Em
Minmitar - Therm/Exp/Kin/Em
Mordus - Kin/Therm/Exp/Em
Sanshas - Em/Therm/Kin/Exp
EoM - Kin
Serpentis - Kin