This is my advise to people who ask me for advise when applying to PhD / graduate school for research. The advisor is probably the only other main factor beside

This is my advise to people who ask me for advise when applying to PhD / graduate school for research. The advisor is probably the only other main factor besides finances and any other personal constraints. If you have a great advisor all around (not just the best researcher in their field, as in they also know how to mentor, teacher, network, and help you reach your goals), they will know how to navigate your different research interests and goals of your PhD and get you to where you want to go.