I generally play as an extremely kind/helpful 'paragon' of type character until I come up against an irredeemable douchebag (like Burke), at which point I kill them with impunity.

I always steer towards playing a hero character. Almost all my playthroughs end up with me genociding every evil person in the wasteland, being Idolized by all factions except Legion and Powder Gangers, and siding with House (Though at this point the NCR takes a dislike to me because they want to expand into Vegas).

If I want to play an evil character I have to make up a evil character to play by and arbitrarily choose evil things. But honestly, there's not that many evil choices you can make in this game, apart from killing NPCs which usually just makes the game world pretty dead.

It's really hard to be evil in NV. In Fallout 3 there were better instances where you could do horrible things even by accident (like helping the ghouls get into Tenpenny Tower) and you could even join the Paradise Falls slavers, doing horrible things up to even enslaving children.

Honestly? It depends on the game. I find, being a good guy is too easy in Fallout 3. I dont blow up Megaton, or pollute the wastes , but I do do evil shit a lot (Steal, kill, lie). Jericho and Clover are two of the best Henchs I could ask for.
As for NV I try to be a good person, so I usually do good things there. However, I am still doing bad things from time to time for the greater good.
Overall, I am a bastard in Fallout 3 and a Saint in NV.
Now in games like The Old Republic, I am always a Bounty Hunter or Sith. Because theya re so much cooler. No offense Jedi.
If I am presented with a moral decision in gaming, I consider what I can gain and lose from this decision and the character I am getting the request from. If their dick heads, THEY getting a bullet. If I like them, their gonna live.

my charchater is the mix hero_villan )

I always make my character very good haha

Depends on the how I am playing a game.  

When I play Fallout New Vegas, I usually decide to help people and avoid conflict, but I might steal from containers to get ammo or other needs.  I feel that it's justified in the Mojave as long as it isn't from people that have barely anything at all. Not to mention that there are worse things than thieves in the Mojave.

In a game like Mass Effect, I almost always go full paragon because I feel good helping others.  However, I sometimes create a renegade Shepard to watch funny moments or to see what would have happened If a made a different choice.

I personally find it easier to do evil things rather than to say or select them via dialogue options. For example, I didn't mind killing Jack the Boomer to steal his grenade rifle however sending Janet to her death in the minefield definitely made me feel some kind of way inside.

My character is soft Anti-Hero Kind of a Deadpool dude

I want my character to be good, however, it never turns out that way. I usually end up like most ,an anti-hero type character.

It's always difficult for me to settle on how I should be with characters. In Fallout games I pretty much help people as much as I can, but I also kill anyone who happens to get in my way. In games like Mass Effect I'm almost always Paragon because I just like being nice to those characters because I love their personalities. And I feel like it fits Shepard better as a character.

Definitely evil. What's the fun in being good when I can play the exact opposite of how I act irl. Granted, I always play as a good character first, and then switch between the two, but playing evil is a lot more fun sometimes. Until you get to the depressing slideshow at least.

I'm not "the good guy" or "the bad guy", I'm just a merc that gets paid for doing your work. I might steal here and there, but I'm no klepto. I just take what I think I'll need later... If my employer gets uppity because I did some jobs for their enemy, I can stop working for the ingrate. My companions look to me for their own reasons; maybe they think I am some silly saviour or they just want to participate in the trail of corpses I leave behind, but in the end we're comrades.

I help everyone out, pretty much so I can get the best ending possible and feel satisfied.

I just can't bring myself to create a villain (except for a cartoonishly evil guy that steals candy from babies) because whenever presented the option, I always prefer to do the right thing. I suppose its because I would consider myself a "good" person at heart, and I can't imagine making the wasteland any worse than it already is for it's inhabitants. However, sarcasm is a perfectly acceptable option for me and I'm more then happy to use it as an alternative.

I always play as a hero in fallout because i can never put myself in a position where i hurt anyone unless i have to.
So whenever they need help, I will always help them.

I honestly think Bethesda doesn't give a villian character enough content, like it would've been great if you could join the Enclave in FO3 and if they expanded the legion quest series in FNV. That said I usually play the hero, but would love a developed counter side.

i usually play as the hero and then a villain but i awlays feel bad when i play as a villain

Mostly neutral. I only do things for my own benefits, like robbing casinos. However, when it comes to story decisions, I'll go with being a good guy that sides with House/NCR.

99% of the time i play as the ideal hero doing things like helping people petting puppies and burning raiders alive while "You wa shock" is playing in the distance

the 1% is when i kill people out of boredom or because they have a really nice hat

Something I love about the classic Fallouts and New Vegas is the moral ambiguity. For my first playthrough, I try to project my own values onto my character, and then take whatever action I feel would be best. This was incredibly enjoyable in New Vegas, since the choices were actually interesting and tough to decide on. I think Fallout 1, 2, and New Vegas are some of the few games to really get morality and moral decisions down right.