You can all pick up points you may have missed. It would be fine if one of you should happen to be an experienced note-taker, but three beginners can learn from each other as well. If you are taking good notes, you are learning effectively. Sometimes you may be concerned not only with learning for your own satisfaction, but also with impressing the instructor. Test-wise, students study the mannerisms of the lecturer.
Some lecturers decorate their points with interesting and important background material.
After one examination, you can judge how much background material is likely to appear on a test. Others unconsciously dwell lovingly on points they enjoy and feel highly significant. Star these points in your notes. They are likely to show up on tests. If the lecturer slows down for a definitional kind of statement, get it word for word and memorize it.