Damage ratio:

(True Centus)
Sanshas - . . . .em / thermal, . . . 60/40

(Dark Corpum)
Blood raider - . em / thermal, . . . 50/50

(Dire Pith)
Guristas - . . . .kinetic / thermal, . 80/20

(Shadow Core)
Serpentis - . . ..kinetic / thermal, . 60/40

(Arch Gistum / Gist Domination)
Angel - . . . . . explosive/kinetic/em/thermal depends on ship type
. . . . . . . . . . average about: . . . 61/20/14/5
(sometimes lot of em, therm comes around cornerstone)

EOM priests - .kinetic / thermal, . .60/40
Drones - . . . .all kinds - depends on drone type
. . . . . . . . . . best damage type to kill: em, therm
Mercenary - . .thermal / kinetic / em / explo BS:therm/kin cruiser:EM
Rogue Pirates - All kinds

Sanshas: . . . tracking disrupt
Blood raider: ..nos / neut
Guristas: . . . ECM jamming
Angel: . . . . . target pai