I don't think Dune is really all that good a book.
I like the Ewoks, and have no problem believing they beat the Empire. First, it was one battle, on their home terrain, with the element of surprise. Second, they did have some Rebel help. Third, there was a big space battle going on overhead, with the Emperor and Darth Vader busy with Luke. If the Empire been able to pay attention, the Ewoks would totally have been toast, but as it is, it's really not all that mind-boggling that they beat them. And, I'm sorry, I think they're cute.
I really don't think David Tennant was all that great a Doctor. Frankly, I found him irritating, twee, and ticky.
Even weeks after the fact, I still feel betrayed and bewildered about the Battlestar Galactica finale. Why, Ronald D. Moore, whyyyyyyyyyyyyyyyyyyyyyyyyy?!?