Science Fiction and Fantasy Genres

I was having a discussion recently with my husband about a Stephen King novel that he's been reading. I've read some Stephen King but have chosen not to read most of his works. I tried but had some difficulty defining what kind of science fiction I like. Finally I came up with realistic science fiction. I'm not sure if that is the correct label for the sub-genre I lean towards or not. King's The stand, as well as Brave new world by Aldous Huxley, Fahrenheit 451 by Ray Bradbury and The Giver by Lois Lowry all fit this category in my opinion. These stories are all written in a realistic manner that seems believable, at least to me. I do not enjoy other types of science fiction, such as the sorts that are set in outer space or have aliens from outer space visiting and/or destroying Earth. I do like time travel, especially when the travel is to some time in history. Fiction works that dwell heavily on the paranormal generally are not to my liking though. I don't usually enjoy animal fantasies with the exception of Charlotte's Web by E. B. White. I do take delight in Charlie and the Chocolate Factory by Roald Dahl with its glass elevator, even though the little men doing all the work is a stretch. Face it....chocolate, all the chocolate one can imagine....yum!