best neighborhoods i lived in
Bernal Heights
Potreo Hill
The Haight - there is a fog factor
North Park
Noe Valley
It all comes down to availability and your lifestyle. If you want a bigger place and never go out look in The Richmond. If you want to enjoy the culture of the city look at one of the places i listed also Cow Hollow is nice.
this breaks it down pretty well
http://www.dreamworld.org/sfguide/Ne...ods/index.html