I have to disagree. First of all, I always enjoy Ep 2. Second of all, I think Ep 2 is has a couple of important events which help shape Anakin towards Vader. And the clone troopers are an important part of the Republic, later Empire.
In Ep 2 Anakin and Padmé start having an affair. Then he gets visions of his mom's death, whom eventually dies and he decides to take revenge and kill the Tuskens. (Getting visions of Padmé's death after that is a major reason of him turning). Plus it's where he gets cyber-arm. Among those are a couple of other things which make him turn.
What I have to agree on, the acting is bad by a couple of the key actors.