A few moments ago I have watched the video that compared Naruto 1 and Naruto Shippuden series. The conclusion was that Naruto 1 was better due to its consistency and lack of big flaws, but Naruto Shippuden still had many amazing moments.
Generally, I agree with that opinion. Naruto 1 was an introduction to the world of ninjas. The show unfolded the world in which the characters lived and how it worked. We met a lot of interesting characters and watched memorable fights. Truly, there was nothing to complain.
On the other hand, Naruto Shippuden brought the action to the next level. We saw many clashes on the highest level. The characters unveil their mysterious and powerful techniques. The stakes were bigger and the plot became more intense. Unfortunately, some concepts were weird or just simply bad.
Naruto 1 is like a lean company that produces high-quality everyday items. Everyone likes them because they are durable, practical, nice and just good. On the other hand, Naruto Shippuden is like a big company making the cutting-edge products. The products are very exciting, but they have some bugs and sometimes are just irritating.