5) Joel or Mike?
Who was the better Mystery Science Theater 3000 host? This was one of the first great flame wars, as nerds who were fans of MST3K also tended to be among the early Internet bulletin boards users, and when Mike replaced Joel on October 30, 1993, a generation of geeks were traumatized, while another generation met their new idol. Whether you prefer Joel or Mike seems to depend almost exclusively on which one was the host when you started watching the show. The two hosts had very different styles. Joel was goofy and good-natured; his riffing was heavy on references and funny voices. Mike was more sarcastic, and would often eviscerate the films by pointing out their technical flaws and bad acting. It was a definite difference in tone, and most fans prefer one or the other.
4) Do Balrogs have wings?
If you were a Lord of the Rings fan in the late 1990s and early part of this decade, you're familiar with this argument. It began raging across Tolkien bulletin boards around 1997 and continues to this day. In its prime, the argument caused some of the longest and most vicious flame wars known to man. And as the link above shows, nerds to this day are still obsessed by the question of Balrog winged-ness.
The problem centers around the description of the Balrog in The Fellowship of the Ring, the first book of Lord of the Rings. Initially, Tolkien describes the Balrog as being casting a dark shadow that "reached out like two vast wings" (emphasis mine). A few paragraphs later, Tolkien states that "its wings were spread from wall to wall." According to the No-Wingers, this is simply a continuation of the metaphor of the Balrog's shadow, while Yes-Wingers interpret "its wings" to refer to the Balrog's flesh-and-blood wings blocking the passage. Over the years various artists and filmmakers have depicted the Balrog according to their own interpretation, although the Yes-Wing theory predominates. Some try to find a middle ground by suggesting the Balrog is shrouded in a kind of living supernatural darkness that spreads out from its back like wings.
The Balrog Wings argument is perhaps the archetypal geek flame war. The topic is both fannish and incredibly pedantic, of no interest whatsoever to the outside world, and yet for whatever reason, geeks argue about it like twelfth century Catholic monks debating some obscure passage of the Bible.
3) The Book Vs. the Movie
While this particular argument isn't unique to geeks, it's certainly a source of endless flame wars. One good example is The Lord of the Rings -- ask almost any fan of the franchise and he or she will almost certainly have a firm opinion of the superiority of one or the other. Fans of the book tend to focus on what the movies leave out, and the things they change; fans of the movies roll their eyes at the endless pages of Elves singing goofy songs or descriptions of landscapes and prefer the film's tight plotting and action..
Other good examples include the Harry Potter movies; movies based on Roald Dahl books such as The Witches, Matilda and Charlie and the Chocolate Factory; any movie based on a Michael Crichton novel; The Hitchhiker's Guide to the Galaxy; and most recently, Watchmen and Twilight (what? Teenaged girls can be geeks too).
2) DC or. Marvel?
Much as the political stew of young America eventually boiled down to Democrats and Republicans, so did the world of comic books become dominated by two powerhouses: DC Comics, home of Superman, Batman, Wonder Woman and the Flash, and Marvel Comics, home of Spider-Man, the Incredible Hulk and the X-Men.
While the development of the two companies have certainly influenced one another over the years, there are certain traits that remain unique to each. DC is the home of the "capes," the older superheroes who were created back when the outfit of a circus strongman didn't look silly to the average person. Marvel is a child of the Silver Age, when heroes began to have actual lives. To this day, DC comics tend to have an epic, often cosmic scope, examining the very nature of what a superhero is and what he or she means to the universe. Marvel comics are often more grounded in realism and examines social and political issues. DC comics take place in fictional cities such as Metropolis and Gotham, while Marvel comics center around New York.
While DC doesn't have the market share of Marvel these days and it certainly doesn't have the breadth and depth of popular characters, it does have two characters -- Superman and Batman -- who are more recognizable to anyone on Earth than any Marvel character (Spider-man is close, but not quite there yet).
1) Star Trek or Star Wars?
Almost from the first blast from a Star Destroyer, fans of Star Wars and Star Trek have been at each others' throats. Ironically, Star Trek fans were once reviled by fans of "real" science fiction in the early 1960s. They enjoyed a brief period of hipness in the early 1970s before being kicked to the curb by the Star Wars juggernaut. The reason Star Trek and Star Wars fans are often at odds is because their worlds are so different. While both feature plenty of adventure, Star Trek emphasizes exploration and examines social and political themes, while Star Wars is an epic featuring classical hero and myth archetypes.
In terms of cultural acceptance, Star Wars fans have long enjoyed the upper hand. Star Trek fans are often stereotyped as incredibly nerdy, basement-dwelling losers, while it was usually cool to like Star Wars. Geeks with broad popularity, like Kevin Smith, also helped raise the profile of Star Wars fans. This has changed somewhat with the Star Wars prequels -- a memorable sketch on Late Night with Conan O'Brien featured Triumph the Insult Comic Dog humiliating a group of fans waiting to see Attack of the Clones.
Star Trek fans, for the most part, have responded in, well, nerdy fashion. The best example is an essay by science fiction author David Brin in which he characterizes Star Wars as an elitist, anti-democratic universe where Force-users lord over everyone else, while Star Trek offers a more populist view where the leaders may be the best and brightest, but still human. However, the really vicious debates are about the important things, such as whether the Enterprise or a Star Destroyer would win in a fight.