So clearly everyone here finds the PT inferior to the OT. And equally clearly, everyone despises a number of plot points, from the very basis of even including Anakin, to the Chosen One prophecy, to midichlorians, to racial stereotypes (I'm not buying that one, personally), to Jedi masters with lightsabers, and so forth. To exacerbate the criticisms, people then turn to the acting, wherein some of the most amazing actors of our day seem to give wooden performances, while others (sexy handsome Hayden, anyone?) of lesser establishment couldn't act their way out of an open beach shade tent. But one issue less touched upon are the design issues. Now honestly, I must admit that this may be one of the PT's stronger points, as there are several great designs throughout the trilogy. But there are several design flaws as well. I will name those that spring most readily to mind.
There is no iconic main ship, no equivalent to the Millennium Falcon. We come to love that ship as a unique character of the OT, yet there is nothing, absolutely no one ship that makes it through the entire trilogy. There are few that make it through two films (I can only think of Padme's silver ship in AOTC and ROTS and the Naboo fighters from TPM and AOTC off the top of my head), and of those that do , we see so little of them and it has so little character that it literally doesn't matter at all.
In a similar vein, there are no iconic designs of more mass-produced ships. The X-wings, Star Destroyers, TIE Fighters, all last throughout the OT, all have an iconic, memorable look, all play a significant role in the films, and all provide a sense of continuity. Now I like the Naboo fighter design. But it is introduced at the end of the first film, is shown briefly at the beginning of the next, and then has no important ongoing role for the rest of the trilogy. There are other similar ships, but it seems like they are always changing, like the Droid Control ships, the cruisers that are essentially mini Star Destroyers (can't remember the class of either, nor do I care to look it up at the moment), but there is nothing to remind us that, yes, we are watching movies in the same continuity.
Where else does the PT fall short in design? And to be fair, what are its successes?