for me, no film has ever made me feel so high as the first screening of pulp fiction in a packed theatre, BUT that movie i have seen to death, and i am numb to it now.
reservior dogs has a special place for me since i loved the movie back in high school and even saw a live stage version which was sweet.
the kill bill films are gorgeous plays on many of my favourite films and genres as a teen also.
but i really think that Tarantino came into his finest form in his adaptation of Elmore Leonard's "Jackie Brown". The plot, the pace, the mix of dark and light are all as matured as all of the main characters. The ensemble cast strike an incredible accord in this beautiful film.