Who do you believe has the strongest or hardest villians?

Your not limited to just characters groups as well. But as for characters id go with thor.

thor... as a villian?

ok, fair enough...

Sinestro... don't think anyone's crazy enough to go up against him without some serious backup... one on one, against pretty much anyone sinestro will mop the floor with them.

anyone except a GL wow im against alot of your opinons tonday lol

lol ok, against an Experienced GL it's a good fight...

against an inexperience GL, or pretty much anyone else?

it's a curbstomp lol

yeah, i think Sinestro he is a crazy guy from my eyese

yeah he gets my vote on crazy son of a bitch who can take you out with no remorse category

Joker he mad, i men really mad

yes he is very very mad

ORACLE says:

"thor... as a villian? ok, fair enough... Sinestro... don't think anyone's crazy enough to go up against him without some serious backup... one on one, against pretty much anyone sinestro will mop the floor with them.

Agreed.

@zee crusher:
I agree.  Thor has the hardest and or strongest villians. 

Here's a good sample: 
----------------------------- 
Surtur 
Ymir 
Kurse 
Destroyer 
Fafnir 
Perrikus 
Desak 
Ulik

Shiva

Demogorge 
Executioner 
Count Nefaria 
Hyperion (Squadron Sinister) 
Ultron 
Pagan

Ego 
Korvac 
Thanos 
Hela 
Man-Gog 
Durock

Jormandgandr 
FenrisAbsorbing Man 
Celestials 
Pluto 
Ragnarok

Spawn.

 Strange has some insanely powerful enemies as well.

" @LT1085: whose villains are those? Surfers? "

I think anyone on the cosmic lvl will have very power full villains.

I will not make that obvious. I will not make the obvious joke. I will not make the obvious joke.
Clearly Codpiece is the hardest villain.
 
Damnit.

i think Fantastic Four. They normally deal with cosmic beings such as Galactus which is one of the most powerful beings in Marvel. 

Green Lantern Corps

" Green Lantern Corps "

" @Sexy Merc said:

" Green Lantern Corps "

I am sort of inclined to believe this... though Swamp Thing maybe someone else who has had some hard foes... Great Evil Beast and The Word to name a few...  "

" @King Saturn said:

" @Sexy Merc said:

" Green Lantern Corps "

I am sort of inclined to believe this... though Swamp Thing maybe someone else who has had some hard foes... Great Evil Beast and The Word to name a few...  "

Superman and Silver Surfer are up there too. "

" @Decoy Elite: Just read the bio, Most Disturbing Villian Ever. "