I'm currently doing a marathon. Episode 1 and 2 are just plain bad films.
The acting is atrocious, and the dialogue is God-awful. But their biggest crime is that they have shitty plot lines. And it's riddled with pretension in that there's so many casual references to races, planets, and superfluous events and titles with zero world building. Plus, the films have no structure, no arcs, and so little semblance of tension or escalation. Hell, Episode 2 introduces yet another desert planet.
Episode 3 though. Damn. It begins with a wicked cool SPACE BATTLE over the outer rim of the most important planet in the galaxy. What's more, the action is paced with CHARACTER DEVELOPMENT; we see Anakin appreciating the efforts of the clones, and Obi Wan shrugging them off as, "doing their jobs." We quickly see Palpatine's machinations begin to unfold; we see a triple play at work where our heroes are off with their quests, see several double-crossings, and watch an entire hierarchy of villains being struck down. And yes, we find ourselves on YET ANOTHER desert planet (with annoyingly loud lizard horses), but it's all forgiven because we're kept on the edge of our seat with the evenly paced action, with our heroes coming to horror with their reality, and our villain who's so charismatic and hammy at the same time, you can't look away. It only took 6 years in between, but George Lucas finally made a movie within the prequel trilogy.
Plus the climactic lightsaber was a fantastic set piece; the lava, the crumbling facility, the dangerous pitfalls and the dialogue. All great fun. And while people make fun of that gif where Anakin and Obi Wan are swinging wildly, it works in the film, because their skills prevent them from gaining a strike, so they both choose a fakeout, which ultimately ends with both their sabers colliding, creating an acute impact. It's actually cool. It also happens to be the fastest lightsaber duel in the entire franchise.
And while the infamous, "NOOoo00.." is still comical, the actual scene where Anakin is being fitted with his armour is a delight.