The ratio of 50t/19t is 2.63 while the 44t/16t ratio is 2.75, i.e. slightly higher. So it would be a little harder to climb hills with the 44t & 16t gears. If you want to make it easier to climb steep hills then either swap the 50t ring for one with fewer teeth or use a cog with more than 19 teeth.
Last edited by prathmann; 11-10-18 at 08:16 PM.