Sakurai, but it won't help you understand the 3 generations of matter because we don't understand why there are 3 generations at all. If you just want to learn particle physics, you can do worse than just reading the review sections of the PDG (pdg.lbl.gov)
And it's probably not a great beginner's text, even though it's really good.
Sakurai is very clear, IMO, but requires a better understanding of linear algebra than a typical undergraduate text. But if you know linear algebra well, QM is pretty straightforward...
And it's probably not a great beginner's text, even though it's really good.