16:9 matches with your eyes better than a 4:3 resolution because it takes up more of your vision, but a 4:3 resolution will entirely fit in your vision anyway. The advantage to 16:9 is that it is more visually appealing, as in literally not just artistically. Proof there is no exact opposite: 960 / 9 = 106.666. 4:3 ratios actually have an advantage over 16:9 because every 16:9 ratio has a corresponding 4:3 that is the same width but is also taller and there are no exact corresponding 16:9 ratios that are exactly bigger than a 4:3 in this same way, hence actually seeing more than the widescreen ratio (For example: 1280 / 16 = 80 and 720 / 9 = 80 vs 1280 / 4 = 320 and 960 / 3 = 320.
