Elmer Fudd. He’s got a shotgun, and he even hits Daffy sometimes, knocking off said duck’s pecker…er…bill. Does he ever hit Bugs?
WHY CAN’T HE KILL AND EAT THEM??!!!???!
And how many impressionable children see this cartoon, hmmm? “It’s okay to shoot Johnny in the face with Dad’s shotgun, because I saw Elmer do it.”
Think of the children, for God’s sake.
Angelus from Buffy the Vampire Slayer, for feeling the need to toy with the heroes rather than killing them. At one point, he was in Buffy’s bedroom while she was asleep, and what did he do? He left drawings behind rather than taking the opportunity to kill the only person strong enough to stop him.
That’s fine for the death ray and the reactor, but how exactly does one go about patenting a time machine? I can’t go beyond the prototype until I come up with an answer… 
As for WTF villains, let’s hear it for the Borg. They’re even worse than the ID aliens–they know better. They put tight security over every path except the one that can shut every bloody one of them down and make the cube self-destruct. (What was up with that, BTW? Will the cubes always blow if everyone decides to take a nap at the same time?) If they had managed to assimilate just one half-competent unix sysadmin, they would have won the day. You restrict by default and allow access at need, not the other way around.
Galactus!
OK, you have the Fantastic Four, and what do they do:
Reed Richards can stretch incredibly. OK, might make for some interesting bedroom situations with Sue, but just an Eel O’Brien without the humor.
Sue Richards can turn invisible. wow.
Brother Johnny–definitely the “coolest” one of the bunch, but has a tendency to get doused at the most inopportune times.
Ben Grimm–regularly took a drubbing every time he faced his gamma-green nemesis, the Hulk.
And in the other corner–Galactus. And what does he do?
He eats worlds.
HE EATS WORLDS!
(now a hijack)
Besides eating worlds, he had (IMO) the absolute coolest character ever to appear in comic books as his sidekick (for a while, anyway). In fact, Norrin Radd was one of the handles I had considered.
I believe that Optimus Prime was killed by Megatron in the series. But he was revived by a female Autobot who gave her own life to save his. Am I mixing this up with the cinematic tour de force that was the Transformer movie?
B
Don’t forget that Flash was also QB of the Super Bowl winning NY Jets. At least in the overhyped Hollywood piece of crap camp version. Anyone that could lead the Jets to the Super Bowl has got to be a super hero. Just like Joe Namath.
Boris and Natasha. I mean, they were evil, enthusiastic, they had all the resources of Russ . . . I mean, Pottsylvania, behind them—and they couldn’t kill a half-witted Moose und Sqvirrel?
What about the evil Lord Krang of Teenage Mutant Ninja Turtle fame?
The guy had the technological know-how to make a mechanical body for himself after the old one was destroyed, live in the middle of the earth AND conquer interdimensional travel (something even Donatello would’ve been hard-pressed to figure out), create thousands of underworld warriors and mutants of his own which he weekly sent to defeat the Turtles, but he also had Shredder on his side. Shredder, who at one point in time, kicked Splinter’s ass, long before he was mutated into a rat and was forced to live in the sewer.
And what did the Turtles have? Some Ninja equipment? And a washed-up Sensai? They were always munching on pizza (not what I would expect from a bunch of Ninjas) and having to rescue April when she decided she needed to get the “scoop” and wound up in peril. Krang should’ve fired those two dimwits Be-Bop and Rocksteady and gone to do the job himself.
Bertron (Doomsday’s creator)
Geez Louise. Not only does he sacrifice an innocent baby…thousands of times, in fact…in his quest to create the ultimate life form, he uses no precautionary measures whatsoever…a mind chip, a built-in weakness, anything…and then expects the subject to just tkae it without any hard feelings. And then thinks that claiming that it won’t go after him because he’s its “father”. Here’s an idea…if you really want immortality, why not use yourself as the test subject? Why should someone else benefit from all your hard work, anyway?
Malebolgia
Toppled by one of his own creations. Which he mocked ceaselessy until the bitter end. I mean, who’s the lord of Hell here, anyway?
Dr. Wily
The greatest technology in a practically lawless world, and he keeps getting embarrassed by a whining, snivelling, immature, obnoxious brat. Even when said brat is helpless, he can never close the deal.
Dr. Claw
Have to second this one. Why he didn’t just confront the dope and rip his head off is beyond me (along with his arms, and legs, and copter, and mallet, and skates…). He could have created a disguise if his secrecy was that important.
The Sailor Moon villains
What does it say that practically every foe the Senshi have ever faced had them outclassed 300 ways from Sunday (which is hardly a surprise…c’mon, they’re ordinary teenagers, for crying out loud), and they always won in the end? And you thought the Bond villains were lame…
Every King of Fighters boss ever
Let’s say that you’re on the wrong side of the law, if not humanity at large, and you have a past that you’d rather leave uninvestigated. Then one way or another, one of the greatest fighting tournaments in the world falls into your hands. What do you do?
A) Market the hell out of it and yourself a la Vince McMahon, turn it into a global extravaganza, then sit back and watch the bucks roll in.
B) Decide that fighting isn’t your thing and sell it to a promoter for a mint.
C) Enter it yourself, kick everyone’s butt, and gain fame and fortune as the #1 brawler on the planet.
D) Stay completely in the shadows, make no attempt whatsoever to publicize the tourney (even though it’s going to happen anyway), and use it for a cockamamie destroy-the-world plot involving “energy” of some sort, thus antagonizing which ever team wins the thing, and leading to your doom when you inevitably lose and the stupid plan falls apart.
If you answered anything but D, you’re not a KOF boss. 