I prefer to play a balanced character in RPGs if possible. I like the flexibility of being at least ok at both mele and ranged attacks. All too often, characters with mainly ranged attacks are weak as water if they are attacked at close range. If a balanced character isn't available, I go with the "tank" as I like beefing him up with leveling up his strength, armor, weapons etc. If the game gives me the option of teaching my tank spells, I usually go with healing spells mostly so I don't have to search for health potions as much. In military games, however, I enjoy being the sniper as it's cool to hide and pick off those guys who have been killing me so easily at close range when playing as other units in previous maps. Especially if they trash talk me when they kill me. Kind of satisfying to take out the hotshot players on multiplayer maps with a sniper rifle.
I usually play as the good guy when given the choice in games as I don't like doing terrible things to people in games nor in real life. Sometimes, while playing Fable II, I'll accidently hurt an NPC who isn't attacking me and I feel bad about it. I also felt bad about seeing what the unexpected consequences were of some of my actions in Fallout 3. Like when you get the Sherrif to go talk to the guy who wants someone to blow up Megaton....
