I have to admit, i can´t stand realism in games above a certain level. Realistic shooters like CoD 1-36 or driving sims like Gran Turismo or Forza are no fun. Give me Quake 3 and Burnout.
The one thing i have a giant personal grudge against is night and day shift in RPGs. It is just annoying as hell. Okay, it adds a little bit atmosphere, but at least allow me to disable it. I remember Gothic, Morrowind, Oblivion, MM6... night sucks. You can´t see anything, shops are closed!!!, i am just forced to press "wait for 6 hours". Oh, the hate.