When watching Inglourious Basterds, one can definitely tell that it's a Quentin Tarantino flick; it's very stylized and violent, the characters are quite unique, and, of course, the movie is almost three hours long. Not once, however, did I find myself bored and wondering when the movie would end. Inglourious Basterds flows in a manner similar to Jackie Brown (1997): lagging at times, but spattered with acts of extreme violence. This definitely isn't Tarantino's greatest film, but it's still quite spectacular.
My only complaints are about the score and a few scenes where Tarantino let Eli Roth talk too much. Usually, I absolutely adore the music Tarantino picks to accompany his films, but I was a bit disappointed at times by the Inglourious Basterds score. I have never heard Tarantino reuse songs for his films, but he used three or four songs in Inglourious Basterds that he had previously used in Kill Bill (2003). This sort of took me out of the movie and made me think of Kill Bill instead. As for my gripe about Eli Roth, he's just not a very good actor and shouldn't be allowed to dominate the screen.
Here's my ranking of Tarantino's most famous films:
1. Pulp Fiction (1994) - 10/10
2. Kill Bill (2003) - 9/10
3. Resevoir Dogs (1992) - 8/10
4. Inglourious Basterds (2009) - 8/10
5. Death Proof (2007) - 6/10
6. Jackie Brown (1997) - 6/10