Great topic...
I had this conversation recently with some friends...I was introduced to D&D at a fairly young age (8) by my friend Tom who was a grade younger then me. He had recieved the game as a birthday gift and was taught how to play by his older brother who already GMed.
Now, at 8 I was already reading at a high school level, watched Star Wars 5 times (my grandpa was a theatre manager), watched Star Tek with my dad every Saturday night and was ahue comic book geek. When introduced to D&D I thought the wizard 'Shazam' had struck me with his lightning bolt. It was he single most awesome thing I had ever seen.
Now, my already full-on nerd background gave me a different perspective on adventure gamng that continues to this day. Most of my players and I never enountered or developed the conditions that befall many other groups. We had:
Little to No Hack n' Slash
We were the heroes. Heroes don't needlessly kill people (Source: Comic Books, Star Trek)
Little Looting of the Bodies
Unless you need their uniforms, keys, a weapon 'cause you lost yours, Heroes rarely ever blatantly rip off the dead (Source: Comic Books, Star Trek, Star Wars)
No Random Killing NPCs instead of Talking to Them
NPCs are interesting characters with information. If heroes just shot first and asked questions later how would you ever learn the plot or have a contact you can call on another time (Source: Cop Shows, Comic Books, Most Fantasy Novels, Star Trek, Star Wars, etc.)
No Min-Max/ Power Gamers/ Rules Lawyers
Whose more powerful Thor or Superman? Batman has no powers but could probably take out both. My favorite superhero is Green Lantern. Dave likes Capt. America. Dave doesn't care that I seem more 'powerful'. He wants to create a cool character. Aragorn can kick Frodo's butt yet its Frodo who goes to Mt. Doom. Make and play the character you want to play. (Source: Comic Books, Fantasy Novels)
From very early on this lead us to check out other games that were more flexible and customizable. We had a tendencey to play Supers and SciFi a lot more then Fantasy. We first learned about terms like Monty Haul, Power Gamer, Rules Lawyer, Hack n' Slash, etc. from Dragon magazine and I remember one of our guys saying,"Seriously? People do that? Why?".
Unfortunately my ideal of the perfect D&D does not exist. To me, while I wax nostalgic over the many cool campaigns I've run, D&D is far from the ideal game for my style of play.
AD