Well quite simply if gradualistic evolution is true, what about the cambrian explosion which defies explanation in gradualistic terms.
The simple answer to this is that the term "explosion" is misleading. The diversification of organisms in this period is estimated to have occurred over a range of about 30 million years. What's more, in order to be available to us as fossils, certain conditions must be met in the biochemical makeup of the organism, and the conditions in which it died; the sparseness of the pre-Cambrian fossil record is believed to reflect some difficulties in meeting those conditions. You can read about it
here.
However, if you look at RAZD's definition of evolutionary theory, he talked about it being a synthesis of different theories. Lack of gradualism is often only apparent rather than factual, and this topic has already been addressed in theories by well-known evolutionary scientists, Gould and Eldredge for example.
Your list at the end of this post is OT here as we are discussing the definition of evolution, the theory of evolution, and evolutionary biology. However, I have seen each one of these things addressed in other topics on the forum if you'd care to have a look.