You have a lot of hills to choose from in San Francisco but in my opinion the best (and most varied) views are from Bernal Hill. Bonus: from my kitchen table I can watch tiny blobs moving around on this hill-- slow blobs are people, fast blobs are dogs.
I fell in love with San Francisco at first site, the buildings and the light, so much grooviness to dig. The signature building style I call "Wonkatecture" -a kaleidoscopic hodgepodge of giddy pioneer freedom and gilded age excess. It's a modernists nightmare! A prime example is The Vedanta Society HQ, built in 1903 to house a religious sect which fostered a multifold path to God and reflected its openness architecturally. More more more.