What's your audience? If you're arguing online with nuatheists, it's a lost cause - they're emotionally attached to their worldview. If it's someone in real life, then don't send the videos, but do soak in: CS Lewis for philosophy, William Lane Craig for appealing to mainstream "science", Ravi Zacharias for appealing to the person who loves a good story. Round out your knowledge and be the apologist, and always be and sound reasonable.