Finally finished the Hunger Games Trilogy, though admittedly I speed-read through the last book.
I thought the first book was great. Even though it was basically a teenage love triangle story, the backdrop of a dystopian future with televised death-matches was pretty brilliant. "The Hunger Games" successfully satirizes both ancient Rome and modern-day America, all while engaging the reader in a fast-paced thriller. You have to suspend logic every now and again, but no big deal.
The second book, "Catching Fire", was basically a re-tread of the first. There are some new characters, and it's only a matter of time before everybody ends up back in the arena. The love triangle was getting a bit tiresome already, but the death-match action was pretty fun.
The third book, "Mockinjay" is a horrible mess. The plot just languishes for pages on end while Katniss obsesses about irrelevant things. I think the main problem is that once she enters the world of a rebel military action, she is really just a spectator to the events that unfold all around her. Since her narration no longer serves the purpose of advancing the plot, her continuing agony over who to take to prom (team Gale or Peeta) just feels tedious. Also, the details of the military action are spectacularly absurd.
That said, Suzanne Collins is so rich from selling these three books, she can afford to hire someone to ignore this review so she doesn't have to do it herself :).