What's your favorite Badge?

Demonic,
Archmage,
Grim Wanderer,
Spirit Warrior,
Heart of Darkness,
Mook.

My creepy character The Lollipop Snatcher has his set to "Sweet Tooth"

My little plant/earth dom fairy, Darkleaf, has hers as "Force of Nature"

Two!

Corpse Box because omgew

Seeker of the Unknown because it's a great hero/explorer badge.

Like others posting, I like the ones that fit my character. My characters all tend to be pretty quirky though, so it can be pretty tough to find something that's a good fit. The ones I like best are:

*Cause for Concern (on my Disney-esque punk fairy, and my depressive/goth dark defender)

*Warrior Princess (on kid toon who thinks she's pretty darned tough. Is emp defender and does truly pitiful damage. She often offers to tank for tankless teams, too.)

*Battery Operated (on now-sentient robot maid)

My suggestion for badge I'd like to see:

-Incarnate Trail (hey, they have a Going Rouge badge, right?)

I also love it when there is a badge that fits my character perfectly. My goth Scrapper wears Vision of Despair, my Kin Corruptor wears Paragon of Vice, and I was pleasantly surprised when my Vigilante Claws Scrapper received Bloody Hands while running SSA #4.

My favorite funny badge is In Therapy.

"Boom goes the Town" on my Fire/Fire blaster!

Mistress of Olympus is my favorite title, and it defaults to my badge title for characters where I don't have anything more specific available to them.

Avoids the Green Stuff/Master of Keyes Island Reactor were the most satisfying to get, because of all the bad luck we had getting it. (I still think we should have had it a month sooner than we did, darn mysterious server logs saying "someone" got hit.)

Blackguard holds a special place in my heart because it was the first badge I organized a run for (I'm pretty sure, anyway). In hindsight, I was probably a little over-paranoid about the possibility of PVPers attacking us, but it worked out well.

The mere existence of Going Rouge made me laugh. Payoff and Unlucky also have good writeups.

Badge art: The only two I can picture and say I like are Payoff (again, funny) and Socialite.

I used to like having Honorary Peacebringer as my Peacebringer's badge title, but then they added Guardian Angel and it was too perfect.

Seer
Mental Voyager
Eyes to the Future
Archmage
Heart of Darkness
Radiant
Solace

All ones I love

Master of the Airwaves is one of my favotrites, mainly because it unlocks my favorite contact. Couch Potato and Pwnz are good too.

But a lot of my characters have specific badges I like to use on them.

Assassin for my assassin.
Kil Skuls for my former Hellion Mastermind
Predator (and Weapon of Mass Destruction eventually) for my SoA
And of course Not a Nemesis Plot gets Eyes of Nemesis

Born in Battle with Timelord coming in a close second.

For my signature stalker, it would have to be 'Dean of Hard Knocks', if only because by coinincidence his real character name was Dean and it was by complete surprise that a Praetorian version of one of the exemplar leader badges was this, had it on him ever since.

Dark Knight is one of my absolute favourites, both because i'm a huge batman fan and it really suits my fm/sd brutes costume and story.

also quite like the International Spy (i think that's the correct name at least) simply because, well, who didnt dream of being an international spy when they were young(er) :P

My villain main is a Freak of Nature.

Moar Power.
(spelling in-game accurate)

There is no way in hell that any of my incarnate toons will not be getting that badge.