As a devoted Vault listener and poster of feedback, a person who attended a number of these concerts at Fillmore, Winterland, and Fillmore West, and having strong auditory opinions, I offer my "Best and Worst of the Vault" up to this point (abridged to save space):

Best Recording (pre-1970): Jeff Beck Group with Rod Stewart

Worst Recording: The Electric Flag

Biggest Revelation: Steppenwolf

Most Overplayed: Tie: Elvin Bishop and Bob Dylan

Worst Live Group: Crosby, Stills, Nash, and Young

Most Missed: Tie: Velvet Underground and Buddy Guy

Most self-indulgent jam: Allman Brothers (Honorable Mention: Led Zeppelin)

Best Jammin': Ten Years After