Ironman (had to build a suit in a warzone) and Batman (witnessed the death of family now wants to fight crime) are at least semi plausible
They are good if not great origin stories
TOP 10 WORST ORIGINS OF ALL TIME
10
Spiderman, got bitten by a radioactive spider. That's it Stan? I know it was the 60s and all but was that the best you could come up with?
9
Robin, wants to be a hero because....I never figured that one out? Is it because he trying to dress up as Batman's Greek lover? Whatever the reason its lame
8
Hulk, more radiation, this time its an atomic bomb and its more superpowers
7
Flash, Barry Allen working late next to a cabinate full of a variety of strange chemicals, all of a sudden lightning strikes and he gets his super speed powers
6
Composite Superman, more lightning- dumbass almost kills himself. Superman saves him. He then returns to his janitor job. I quote wiki : Meach was sweeping in front of a series of statuettes depicting the Legion of Super-Heroes, a bolt of lightning passed through an open window and struck the display. The statuettes, which were actually miniature lifeless duplicates of the Legionnaires, unleashed an energy blast that struck Meach. Meach discovered that he was endowed with the combined powers of the Legion members. Determined to defeat Superman and Batman, Meach used his shapeshifting power to turn his skin green and form a costume that was half Superman's, half Batman's. Calling himself the Composite Superman
5
Kid Flash, more lightning. Kid visits his uncle who happens to be working with a cabinate of the exact same varitey of strange chemcials, all of a sudden the improbable unlikelihood of the exact thing happening with a random lightning strike, but the exact same chemicals in the exact same positions finally strains disbelief even in the cartoon universe.
4
Superman he was just born that way. Moses in a basket beginning, I don't get how nobody has figured out he's Clark Kent...glasses!?!? That's all you got? He gets his power from the Sun...that's it. So why doesn't he fall out of the sky like a rock when the sun sets? Why isn't he weaker in winter time? The origin is lame, he's supposed to be the last son of krypton but his never ending extended family of babies, supergirls, super dogs is even lamer
3 Fan 4 by Cracked dot com 5 of the Most Absurd Superhero OriginsBy Jay Pinkerton. What would have really happened the Fantastic 4:
Reed Richards wisely decides to keep quiet about his goal to beat the Communists to Mars after noticing the horrified looks on his colleagues' faces, and so manages to get into outer space without tipping off the authorities. Once there, the four are bombarded with cosmic rays and, as advances in radiation can attest, nothing much happens initially. Since it takes the better part of a year to reach far-off Mars, Reed and co. settle in for the voyage, playing charades and watching Ben Grimm's astonishingly comprehensive collection of amateur pornography.After a month of lethal radiation, Johnny develops a cataract in his left eye and Ben Grimm becomes sterile. After two months, Susan's hair begins to fall out in clumps and Richards starts pooping blood. By the time they reach Mars, every one of them has cancer. Luckily, due to the heavy nuclei in cosmic radiation all are profoundly brain damaged at this point, and nobody even notices. Now piloting a spacecraft while legally retarded, Reed suggests they abandon their Mars mission and fly off in the direction of a distant galaxy instead, on the grounds that it looks like ice cream. They are never heard from again.
2
Sentry, Marvel's superman clone with an even more lame origin
1
Bouncing Boy, was supposed to deliver a super-elastic fluid instead the idiot almost poisons himself opening the bottle and drinking it.
Lame origin, lamer hero
And I just realized that it was Learned Hand, of all people, who presided over one of the biggest travesties I know of in intellectual property law. 
