I like to play a very plain character. Human, standard stats, nothing special, but nothing too average either. This comes through in the games I GM for as well.
I prefer to let players ACTUALLY solve puzzles and deal with problems instead of magically skipping through campaigns with overpowered spells, weapons, items, abilities, and the like. No, you will be tentatively walking through the halls of dungeons hoping you are quiet. You will carefully jog through the woods and hope nothing sees you. You will stay in the far corners of towns praying nothing comes your way. Do you hear it? That's your health bar. It's low.