When it comes to the prequels, the things I didn't like about them were Hayden Christensen, the little boy Anikin, and some of the dialogue was just terrible which is on Lucas.
Other than that, I thought he overall story of the trilogy was good. People hated the politics/trade dispute of episode one, but I thought it was a good way to start the conflict in the while saga. Remember, that up until episode 1 there was peace, and that trade conflict eventually was the beginning of so far a century of instability.
The other thing he prequels were missing and this is a trilogy thing is that he original trilogy really had two story lines. You had the rebellion vs the empire with the non force users. Then you had the good vs evil battle between the Jedi and the sith. The prequels were too focused on the Jedi and sith, and didn't have that sells one conflict among the normal people in he galaxy.