Just saw, for the umpteenth time, the commercial for the DVD of League of Extraordinary Gentlemen.
Every cast member is handsome, sexy, muscular and whatnot.
So, name me some superheroes who aren’t? And no, The Hulk doesn’t count.
That probably rules out The Thing, too.
How about Plastic Man.
Never fear, Common Multiple Man is here!
Peter Parker was originally quite the wallflower.
However, over the run of the comic, he eventually morphed into the cut, muscular, sexy beast he is today.
And pretty much every hero from Alan Moore’s Watchmen.
You probably don’t want to include villians, but I can’t help mentioning that The Blob is generally considered the antithesis of “cut, muscular, and sexy.”
Most heroes of the 40s and 50s were not portrayed as being “cut.” Reed Richards of the Fantastic Four was just a normal looking guy (when he wasn’t stretching all over the place). Believe it or not, that sort of muscle defintion was considered quite grotesque at the time.
I blame it all on Neal Adams – one of my favorite comic book artists, but he pretty much invented the style. People talk about Jack Kirby’s influence – which was important – but most heros shown today are basically clones of Neal Adams’s work.
Other non-sexy superheroes: The Fat Fury, the original Captain Marvel (heck, the entire Marvel Family, The Inferior Five (not counting Dumb Bunny, who was a dish), the original Wesley Dodds Sandman, and Johnny Thunder.
Bouncing Boy
wasn’t captain kangaroo a superhero?.. 
What, no mention of Puma Man?
Sheesh!
The Moth, the sidekick on the Tick’s short-lived TV series.
Robin and Superboy
Underdog
Corageous Cat and Minute Mouse
Ah, they’re 1920s-style “death x-rays.”
For that matter, the 1940’s-1950’s Batman wasn’t that ripped. Yes, he was big and strong, but he looked more like a professional wrestler of the era than like Mr. Universe. The ideal back then wasn’t a fantasticly low body-fat percentage, but what real athletes actually looked like.
Does John Constantine from Hellblazer count as a superhero? Skinny chain smoking guy.
The Drummer from Planetary isn’t muscle bound.
The Doctor from The Authority is a veritable weed. In one issue, he admits to getting the crap beaten out of him at school.
There are some pudgy, overweight superhero/cops in Top Ten.
And finally, Elongated Man is a skinny-ish guy. Maybe those stretchy types just don’t need muscles.
Puck from Alpha Flight was really short.
Prof X is just an old bald dude in a wheelchair…
oh, sure, he can MAKE the chicks think he’s sexy, but that don’t count…
The golden age Sandman.
Most of the Xavier institute’s students in New X-Men. Although they aren’t full-fledged “heroes” (or villains?) quite yet.
Marvel’s “Madame Web” is an elderly, completely paralyzed woman, permenantly attached to a life support system.
Marvel’s “Warlock” is/was a goofy looking robot.
About one quarter of X-Statix is fairly unattractive, at any one time. (Membership constantly shifts, of course.)
Only Matt Wagner’s revamp had him as a bookish and almost introverted guy. Jerry Ordway draw The Sandman as your typical muscle bound hero in the pages of All Star Squadron, for example.