The mountains, the oceans, and the fog.
It never seems to dip below 50 degrees.
The W in SoMa (my second home)
Delicious/fresh sushi at the most unassuming places.
Westfield Mall in Union Square (sometimes you need a mall--and this one is awesome)
"San Francisco: The city that knows how." William Howard Taft, my fellow Ohioan.