I have the AF-S DX Zoom-Nikkor 18-55mm f/3.5-5.6G ED II that came with the camera. However, I've been looking at getting the AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR lens, which has the same range of aperture settings, but has a much greater range that fully includes the lens that I have now.
In both cases, the only apparent difference in terms of features is that the 16-85 and 55-200 have IF, while the 18-55 and 55-300 don't. However, will I notice anything in terms of image quality or performance when I'm using the 16-85 with a focal length set to between 18-55 when I compare it to my current 18-55? The same goes for the 55-300.