I honestly prefer the house curve in my room. This is where the the bass region is above the reference level and trending at a downward slope where the up end of the frequency response(20k) is probably at about 6db/oct. In linear scale, theoretically this will give you a flat response but not in FFT.
One other thing to remember is that having a good frequency response is only the tip of the iceberg. How it sound is another thing.