I prefer a certain balance with my realism. I like some things to be realistic, such as grenade splash damage, flight mechanics in games that need it, and graphics(not a requirement, but certainly a plus.) Some things, however, such as bullet damage, tiredness, eating, blah blah blah...you know how it is. They're all very silly mechanics that aren't really needed, and only exist to help people avoid having to think things like "okay, after two hundred years, wouldn't the Washington Monument have fallen down?" (Actual example, Fallout 3. In case anyone's noticed, yes, I have played a lot of that game lately.)