Well, I have a different reaction to the two KILL BILL films. I admire them both, but they're SO different from each other, and I really preferred the less frenetic pace and depth of feel of the second one. When I want to watch KILL BILL, I always go for part II first.
I'm not a Tarantino groupie. I haven't seen everything he's done (have never watched RESERVOIR DOGS, for instance), and I was repelled by PULP FICTION when I first saw it. (I suspect it wouldn't be so shocking to me now having seen much of his oeuvre.)
But INGLOURIOUS BASTERDS impressed me from the get-go, and for me it's his best movie by far.