Exploration
Gravimetric - Belt
Radar - Hacking
Magnetometric - Arch/Salv
Ladar - Arch/COSMOS/Gas Clouds
Unknown - Plex/WH

http://games.chruker.dk/eve_online/damage_types.php

Gallente Drones (Thermal)
Pros - Heaviest damage of all drone types, best "tanked" drone.
Cons - Worst tracking and slowest speed of all drone types.

Minmatar Drones (Explosive)
Pros - Fastest Drones and joint best tracking speed.
Cons - 2nd weakest Damage

Caldari Drones (Kinetic)
Pros - 2nd Best damage, average speed. Uses shields as its "tank"
Cons - 2nd Worst Tracking and speed.

Amarr Drones (EM)
Pros - Joint Best tracking
Cons - Weakest Damage, only

*** Stacking Penalties ***
1st mod: c(1) = 100.000% effectiveness
2nd mod: c(2) = 86.9119842% effectiveness
3d mod: c(3) = 57.1037996% effectiveness
4th mod: c(4) = 28.2469117% effectiveness