By far Iv'e found that I make somewhat interesting characters, even if they don't last long. I decided to give some tips, for those who are new to the server and those who have just lost their favorite character and don't know how to begin again.
Firstly, if you want your character good or evil, make sure that if he is good, he has an evil trait, and if he's evil, he has a "redeeming quality" No-one likes a person who is purely good or purely evil. It's unrealistic, the way they act. Sacrificing people for the hell of it would qualify as evil, but it doesn't make sense. However, an assassin that kills for the cause of his choice, but feels remorse and sadness for those he kills, would be a cool concept for a character. The same for a character who is good. He can be good, but he might fall to the temptation of stealing every once in a little while.
When you decide to make a character who is crazy, that's fine. Your'e in the underdark, and the simple man would go crazy in such an environment, but don't go mugging people for no reason other than "I'm crazy" it's amazing how crazy people are unil they come across a person they OOC is more powerfull than them. rather, if your character is crazy, choose something that sets him off, and stick with it, whether it's the people he hates is religious, wears the color red, is associated with spellcasters, etc. etc.
Do anything to make your character stand out, within reason of course. An example is a character I recently created who has an extremely low charisma score. I made him scarred by acid and fire. along with knife wounds, to make him easy to see in the crowd, this creates more character interaction, because people will be curious, and thus can influence your character, which leads me to the next point:
LET OTHER CHARACTERS INFLUENCE YOU. People change. People change other people. It's not a crime to have slight changes in personality and beliefs due to the influence of a firiend you may come to know.
Another point, if you are unable to make an interesting character, don't. LET SOMEONE ELSE DO IT FOR YOU. What I mean is this, make a character with an interesting appearance alone. That's all. Set his/her alignment to neutral, and make him/her a faithless person. You are now perfect for being influenced by anyone else. You can do anything. You could become a member of the watch, you could become a follower of and evil god. It just depends on what other characters introduce you to. Make your character the picture of innocence, perfect for defilement or hardening into a law-abiding citizen.
Finally, on the subject of backgrounds, if you don't have one in mind, then start with what clothes you buy in the beginning of the game, and where you start in the begnning of the game. You could be a small-time noble who's lived in upper city all your life, or you could be a thug from lower. When people ask you about your character's background, start there, when they ask for more info, build up on the background, until you have a huge detailed background. after that, STICK WITH THAT BACKGROUND.
I think that's all, if any of this sounds wrong to the DMs, tell me. I'm good at fixing my mistakes, seeing as how they happen often.