I loved DBZ to death. I still watch it sometimes. Now, I love the Naruto series, and it's also 2 series: Naruto and Naruto Shippuden, with the later being more serious, imo.
Maybe you didn't watch it from the first episode. Some people I've seen don't like the show, but they never watched it as it was intended. From the beginning.
Also, in my personal opinion, Naruto has already surpassed the Dragon Ball series. It has more character development and more interesting fights. Not to mention a more thought out plot. I enjoyed the fights in DBZ, but watching them again, it seems they're all almost the same.