Tarantino operates on a dysfunctional basic premise - that a whiteboy can somehow attempt to make movies with universal appeal that are basically concealed idolization of all things black culture without legitimacy in the area and without being a suckup or a sap. It would be like if I made a movie about the wonders of being Muslim without ever performing hajj, praying to Allah or personally knowing a Muslim. He attempted to distance himself a bit from the "im not black but I wish I was and I'm sorry I'm so queer" motif in Kill Bill, instead moving in the other direction; positing that making a live action anime was somehow cool. I don't like him, his artistic endeavors, the fact that he punched a black woman in the face over an argument about black portrayal in movies, or the fact that he encourages whiteboys to say nigga. He's somewhat reminiscent of the kid who kicks it with a school bully going "nyea nyea nyea" - except the big bully is black culture, and I don't think the Black community, or anyone with half a mind, agrees that he is or was allowed to tag along. It kind of reminds me of all the hip-hop whiteboy Cannibal Ox fans who spell wack "whack" and act like nothing is wrong.
Guy Ritchie movies I haven't watched much of. I don't give a shit if he made one called Fucking Frogpad Sofas about homosexual encounters between SF Muni workers. Guy Ritchie's persona, ideals, or matter little. QT's do; they are central in his presentation, cinematography, and underlying "moral of the story".
Snatch and LSTSB while being near duplicates of some Tarantino films have, at the very least, the virtue of being not American, and give a different perspective, perhaps some originality, to QT's formula of "Yo I'm down with it man" mixed with the old-school "gangster movie" vibe.