Either everybody is TOO LAZY or nobody wants to help hick. Either way ill explain it (as I have to about 10 different people before)
What you need to understand about the condition Kill is this: Kill means Kill. If you kill 1 zergling, then you will have 1 kill of a zergling. If you do preserve trigger, and you kill just 1 zergling, itll keep giving u minerals, since there is no way to subtract 1 zergling kill. In other words, you cannot do this kind of thing (unless you want to waste a LOT OF TIME (SC Trigger helps, but im sure you might reach the string limit or something else quickly).
If you want to actually have different units give different resource ammounts, do this:
Conditions: Always
Actions: Leaderboard Points: Kills
--new trigger--
Conditions: Current player's score (kills) is atleast __ (civs give the least: 10, next is broodling which gives 25, then zergling which gives 50)
Actions: Subtract 10 Score (kills) for current player
Add (however ammount) Minerals for current player.
Ok, since I defiled the original guide that I stole

I will just give you the full one.
Thanks to ZD]Squirrel
TERRAN UNITS
Unit Worth Size Damage Atk Range Speed
Men: Type reload
Marine - 100 S n .7 4/6 18 (32 stimmed)
Ghost - 350 s c 1.1 7 18
Vulture - 150 m c/- 1.5 5 34
Goliath - 400 l n/e 1.1 5/9upg 25
Siege Tank - 700 l e/- 1.8/3.7 7/12 18
SCV - 100 s n/- .7 1 27
Firebat - 200 s c/- 1.1 1 18
Medic - 250 s - - - 18
Wraith - 800 l n/e 1.5/1.1 5 40
Science Vessel - 1250 l - - - 40
Dropship - 600 l - - - 30
Battlecruiser - 2400 l n 1.5 6 15
Valkyrie - 800 s -/e 3.2 6 40
Gui Montag (Firebat) - 400
Civilian - 10 s - - - 18
Sarah Kerrigan (Ghost) - 700
Alan Schezar (Goliath) - 800
Jim Raynor (Vulture) - 300
Jim Raynor (Marine) - 200
Tom Kazansky (Wraith) - 1600
Magellan (Science Vessel) - 2500
Edmund Duke (Siege Tank) - 1400
Arcturus Mengsk (BC) - 4800
Hyperion (Battlecruiser) - 4800 1.1
Norad II (Battlecruiser) - 4800
Samir Duran (Ghost) - 700
Alexei Stukov (Ghost) - 700
Gerard DuGalle (BC) - 4800
~
Special:
Vulture Spider Mine - 25 s
~
Buildings:
(lift off) 9
Command Center - 1200 l
Supply Depot - 150 l
Refinery - 150 l
Barracks - 225 l
Academy - 300 l
Factory - 600 l
Starport - 600 l
Science Facility - 825 l
Engineering Bay - 195 l
Armory - 300 l
Missile Turret - 150 l -/e .7 7
Bunker - 150 l
~
Addons:
Comsat Station - 225 l
Nuclear Silo - 225 l
Control Tower - 300 l
Covert Ops - 225 l
Physics Lab - 225 l
Machine Shop - 225 l
~
Special Buildings:
Norad II (Crashed BC) - 5000 l
Ion Cannon - 5000 l
Psi Disruptor - 3600 l
Power Generator - 600 l
~
Independent:
Independent Starport - 10 l
ZERG UNITS
~~~!!!~~~
Unit Worth Size Damage Atk Range Speed
Men: Type reload
Zergling - 50 s n/- 6/upg/4 0 33/45
Hydralisk - 350 m e .7 4/6 18/33
Ultralisk - 1300 l n/- .7 0 25/45
Broodling - 25 s n/- .7 0 ?
Drone - 100 s n/- .7 0 27
Defiler - 450 m - - - 18
Infested Terran - 400 s e/- - 0 33
Lurker - 500 l n/- 1.9 6 33
Overlord - 200 l - - - 5/19
Mutalisk - 600 s n 1.5 3 40
Guardian - 1100 l e/- 1.5 8 14
Queen - 800 m - - - 40
Scourge - 200 s -/e - 0 40
Devourer - 1100 l -/e 5 6 30
Torrasque (Ultralisk) - 2600 l n/-
Matriarch (Queen) - 1600 m -
Infested Kerrigan - 4000 s n/- .7 0
Unclean One (Defiler) - 900 m -
Hunter Killer (Hydralisk) - 500 m e
Devouring One (Zergling) - 100 s n/-
Kukulza (Mutalisk) - 1200 s n
Kukulza (Guardian) - 2200 l n/-
Yggdrasill (Overlord) - 400 l -
Infested Duran - 700 s c
~
Specials:
Larva - 10 ? - -
Egg - 25 ? - -
Cocoon - 10 ? - -
~
Buildings:
Infested Command Center - 900 l
Hatchery - 900 l
Lair - 1200 l
Hive - 1500 l
Nydus Canal - 225 l
Hydralisk Den - 300 l
Defiler Mound - 450 l
Greater Spire - 1350 l
Queen's Nest - 525 l
Evolution Chamber - 120 l
Ultralisk Cavern - 825 l
Spire - 750 l
Spawning Pool - 225 l
Creep Colony - 120 l
Spore Colony - 195 l -/e 1.8 7
Sunken Colony - 240 l e/- .7 7
Extractor - 75 l
~
Special Buildings:
Overmind (With Shell) - 10000 l
Overmind - 10000 l
Mature Crysalis - 5000 l
Cerebrate - 2500 l
Cerebrate Daggoth - 2500 l
Overmind Cocoon - 4000 l
~~~!!!~~~
PROTOSS
Unit Worth Size Damage Atk Range Speed
Men: Type reload
Dark Templar - 650 s n/- 1.5 0 25
Dark Archon - 1300 l - - - 25
Probe - 100 s n/- 1.1 0 27
Zealot - 200 s n/- 1.1 0 18/33
Dragoon - 500 l e 1.1 4/6 25
High Templar - 700 s - - - 18
Archon - 1400 l n 1 1 25
Reaver - 800 l n/- 3 8 12
Corsair - 700 m -/e .4 5 40
Shuttle - 400 l - - - 25
Scout - 1300 l n/e 1.1/1.5 4 40
Arbiter - 2050 l e 2.2 5 30
Carrier - 1900 l n 1.5 8 20
Observer - 450 s - - - 20/27
Dark Templar (Hero) - 400 s n/-
Zeratul (Dark Templar) - 800 s n/- 1.1
Tassadar/Zeratul (Archon) - 2800 l n
Fenix (Zealot) - 400 s n/-
Fenix (Dragoon) - 1000 l e
Tassadar (Templar) - 1400 s n/- 1.5 about 3
Mojo (Scout) - 2600 l n/e
Warbringer (Reaver) - 1600 l n/-
Gantrithor (Carrier) - 3800 l n
Danimoth (Arbiter) - 4100 l e
Aldaris (Templar) - 1400 s n/- 1.1 about 3
Artanis (Scout) - 2400 l n/e
Raszagal (Dark Templar) - 1300 m -/e
~
Buildings:
Nexus - 1200 l
Robotics Facility - 900 l
Pylon - 150 l
Assimilator - 150 l
Observatory - 525 l
Gateway - 225 l
Photon Cannon - 300 l n 2.2 7
Citadel of Adun - 600 l
Cybernetics Core - 300 l
Templar Archives - 750 l
Forge - 300 l
Stargate - 900 l
Fleet Beacon - 1050 l
Arbiter Tribunal - 1350 l
Robotics Support Bay - 375 l
Shield Battery - 150 l
~
Special Buildings:
Stasis Cell/Prison - 5000 l
Protoss Temple - 5000 l
Xel'Naga Temple - 5000 l
Warp Gate - 2000 l
~
NEUTRAL UNITS
Critters:
Rhynadon (Badlands) - 10 ? - ?
Bengalaas (Jungle) - 10 ? - ?
Scantid (Desert) - 10 ? - ?
Kakaru (Twilight) - 10 ? - ?
Ragnasaur (Ash World) - 10 ? - ?
Ursadon (Ice World) - 10 ? - ?
The thing your looking for is Points (sorry the letters are unaligned, but StarEdits.net's font does that)
Also, no, there is no way to customize how much points you get for a certain unit (other than subtracting minerals/kills for killing 1 of its kind)