I don’t know enough about how Welles was received back in the day, but my general impression is that he and Tarantino aren’t particularly comparable.

Orson Welles was 26 when Citizen Kane was released. Tarantino was 31 when Pulp Fiction opened. Those ages seem close enough to add to the comparison. Yet, in truth, Tarantino was a lot younger than Welles, and not just because of his exuberant, helter-skelter way of talking on so many television talk shows, or even his giddy taste for roller-coaster movies, violence and a world in which movies referred largely to other movies.