Degree choice - Chemistry vs. English LiteratureWatch
Chemistry and English literature are very different subjects. A chemistry degree is likely to involve a lot of lab work and some maths, whereas English literature will have a lot of reading and, depending on the university/course, drama. So the first thing to do would be to consider what you'd want to actually be doing on your course, whether you'd rather read books or do experiments. That is a very simplified version of the courses but it's one way to look at it. Have a look at what the universities you want to go to teach because different courses will vary as some are more hands-on than others or look at topics that do or don't interest you.
Also, look at what jobs you can do afterwards. Lots of jobs are open to graduates in any subject but there are others where either chemistry or English literature might be a requirement or an advantage. For example, English literature graduates often go into teaching, publishing or marketing, whereas chemistry graduates become chemical engineers, research scientists or forensic scientists and I imagine it would also be a great subject to do if yo decide to do a masters in something healthcare-related.
Its great that you have a few local options for either course. You only need one so the difference between 3 and 5 is not significant.