My guesses:
1. Fire
2. Mind or Psy
3. War Mace
4. Super-Strength
5. Electric
6. Broadsword or Titan Weapon
7. Katana or Claws
8. Ice (duh)
9. Beast MM
10. Gravity
50s: Inv/SS PB Emp/Dark Grav/FF DM/Regen TA/A Sonic/Elec MA/Regen Fire/Kin Sonic/Rad Ice/Kin Crab Fire/Cold NW Merc/Dark Emp/Sonic Rad/Psy Emp/Ice WP/DB FA/SM
Overlord of Dream Team and Nightmare Squad
Very cool, Percival! Nice visuals.
I agree with all of Flea's guesses, although 4 could also be Stone Melee, 5 Beam Rifle (electric was my first guess though), 6 Battle Axe, and 7 Dual Blades. We may need to perform more forensic analysis on the er..."prisoners." 
Fun stuff!
Flea only missed one.
I'm guessing #7 could be Dual Blades......
"An intelligent man is sometimes forced to be drunk to spend time with his fools" --Ernest Hemmingway, "For Whom the Bell Tolls"
Global: @salud
The idea for this came from the games conceit that we are arresting the villains. My main is a broadsword scrapper. How exactly do I arrest someone non-lethally with a head-splitter or disembowel?
Anyway here are the answers.
1. Fire
2. Mental Blast
3. War Mace, Mace Mastery
4. Titan Weapons (blunt trauma versions), or (after consulting with the other scorers) Super Strength.
5. Electric Melee, or Blast.
6. Broadsword, Titan Weapon (sharp edged versions)
7. Claws, Duel Blades
8. Ice
9. Beast Mastery
10. Grav
I also tried to come up with images for some of the negative energy powers, but couldnt think of any. Anyone have any ideas?
So flea got them all right then. For neg here is a good one. A Cimarion sitting in the corner with terror and fear in there eyes.
I thought some people might enjoy this. I hope it doesn't come across as too lame. Feel free to to take the quiz or add your own "images".
PPD Textbook Quiz
Chapter 13: How to identify a Supers Powerset.
Section 1: Physical evidence
Below are images showing the physical state wanted criminals were turned in to PPD stations throughout Paragon City. Study each image closely and see if you can identify the hero power set used to apprehend each perpetrator.(You will have to imagine these descriptions are images)
Image one: A pile of ash with what looks like a mask lying on top.
Image two: An Outsider on his back staring blankly into space and drooling.
Image three: A Troll with his head bashed in so that it resembles an accordion
Image Four: A Troll with his entire body bashed in so that it resembles an accordion
Image Five: A Warrior with his skin and clothes severely scorched and his hair sticking straight out from his head.
Image Six: A Hellion chopped into two large parts.
Image Seven: A Hellion chopped into numerous small parts.
Image Eight: One of the Lost frozen in a block of Ice
Image Nine: A Tsoo with countless bee stings, several bird bites, and a large growling wolf jaws still locked on to the perpetrators butt.
Image Ten: A Freak imbedded in the middle of a large role of pink insulation.