One of the powerful things about Stormtroopers is their uniformity: they are legion, they act as one, and for every one you kill, another will take its place. So what do you get when you replace them in the Prequels with a bunch of goofy droids, fragile bug-people, and a cast of leaders and generals more motley than the Dirty Dozen? That doesn't really need answering, but let's plough on anyway... You get a group of bad guys who don't really get enough time to distinguish themselves besides some pointless bickering and who never demonstrate exactly why they're a threat at all. The Prequel villains are actually members of a confederation bent on leaving the Republic for vaguely greedy reasons, and most of them seem to be vaguely incompetent, and any actual leader among them spends more time directly confronting our heroes than actual leading. Darth Vader, they are not. And it doesn't help that the most incompetent ones seem to survive until the very end of the second trilogy. Honestly, it seems like the sort of problem a little editing could have handled: condensing some characters here or there, managing confrontations differently, but that's a rare thing when there's only one guy making the decisions...
I am a writer and musician born and raised in Montana. I have done everything from fixing fences in Glacier National Park to curating the music library at KBGA Missoula. I am also a lazy jerk.