Which one: PDF Expert, GoodNotes or Notability to doodle,highlight and annotate PDFs?

I will purchase an iPad Pro 12.9" soon.

What I want to do is simply to edit PDFs (scanned books mostly) so that I can underline them, make small annotations on the margins and highlight certain paragraphs.

Which app would be better for my needs?:

(ratings from the AppStore)

- PDF Expert - rated 4.6 - 10,99 €
- PDF Viewer - rated 4.6 - Free
- Noteshelf 2 - rated 4.3 - 10,99 €
- GoodNotes 5 - rated 4.4 - 8,99 €
- Notability - rated 4.0 - 10,99 €
- others?