San Francisco - Best hostel in SFO?

Just wondering if anyone can recommend me a nice hostel in SFO for a 3-4 night stay.
Cheers

We don't see too many backpackers on the San Francisco forum. I had a friend stay at the YHA in Fort Mason which is near Fisherman's Wharf a few years back, and I don't think you can beat the location. YHA also has two hostels on the downtown side.
http://www.sfhostels.com/fishermans-wharf/features/
Seems to get mixed reviews on Trip Advisor, though not a lot of recent reviews:
http://www.tripadvisor.com/Hotel_Review-g60713-d291222-Reviews-Hostelling_International_San_Francisco_Fisherman_s _Wharf-San_Francisco_California.html

My hostel of choice is Elements (http://www.elementssf.com/) on Mission @ 21st St.

Thank you!

My hostel of choice is Elements (http://www.elementssf.com/) on Mission @ 21st St.

+1. I've done Elements twice before a friend of mine moved to the Mission.