Not a fan, IMO he's one of the most overrated directors/movie makers of all time. I just never got the appeal of his movies, especially after noticing how similar they are all to each other, like he just wants to make the same movie over and over but in different settings.
Reservoir Dogs, it's my favorite movie of all time. I can watch it anytime, repeatedly. Mr. Blonde's "Stuck in the Middle With You" scene is incredible, I love Mr. Orange, and the ending is great.
Django is probably my second favorite, followed by Pulp Fiction.