With features, you only get one shot at an outcome, a few words (between 500 and 2,000 usually) with which to do it, all of which make up a series of paragraphs, to make your point.
It is therefore important that you uncover and identify the primary point that you want your feature to make before you start tapping away.
Do that before you begin your feature, using all of your best information.
What is going to jump from the page into the reader’s mind? What is going to shock, surprise, draw in or engage the reader?
These are questions which can help you determine your opening words.