Damage type to protect against:

Guristas - Kinetic (pri) Thermal (sec)
Serpentis - Thermal (pri) Kinetic (sec)
Mordus - Kinetic (pri) Thermal (sec)
Blood Raider - Thermal (pri) EM (sec)
Sansha's Nation - EM (pri) Thermal (sec)
Angel Cartel - Kinetic (pri) Explosive (sec)
Mercenary - Kinetic (pri) EM (sec) Thermal (ter)
Khanid - Kinetic (pri) Thermal (sec)
Minmatar Fleet - Thermal (pri) Explosive (sec) (omni tank recommended)
Amarr Navy - EM (pri) Thermal (sec)
Gallente Navy - Kinetic (pri) Thermal (Sec)
Caldari Navy - Kinetic (pri) Thermal (sec)
EoM - Kinetic (pri) Thermal Sec

Best Damage to Inflict:

Angel Cartel - Explosive
Blood Raiders - Electromagnetic/Thermal
Caldary Navy - Kinetic
EoM - Kinetic
Guristas - Kinetic
Mercenary - Thermal
Mordu's Legion - Thermal/Kinetic
Sansha - Electromagnetic/Thermal
Serpentis - Thermal/Kinetic
The Syndicate - Kinetic/Thermal
Thukker Tribe - Explosive