Got this idea from another, so pass it on:
** Smallest to Largest Site **
Burrow > Hideaway > Refuge > Den > Yard > Rally Point > Port > Hub > Haven > Sanctum

** Easiest to Hardest Site **
Hidden > Forsaken > Forlorn

** Targeting systems **
Minmatar - Ladar
Caldary - Gravimetric
Gallente - Magnetometric
Amarr - Radar

** Defend Against **
Angel Cartel - Explosive 62% / Kinetic 22%
Blood Raider - EM/ 50% / Thermal 48%
Drones - Explosive 68% / Kinetic 20%
Guristas - Kinetic 79% / Thermal 18%
Serpentis - Thermal 55% / Kinetic 45%
Sansha's Nation - EM 53% / Thermal 47%
Mordus Legion - Thermal / Kinetic
Minmatar Fleet - Thermal / Explosive
Amarr Navy - EM 53% / Thermal 47%
Thukker Tribe - Thermal / Explosive
Pithy - Thermal / Kinetic

** Shoot With **
Guristas - Kinetic
Serpentis - Thermal
Mordus - Thermal & Kinetic
Blood - Thermal
Sansha - Thermal
Angel - Explosive
Mercenary - Thermal
Pithy - Thermal & Kinetic