What are the differences between the Nikon 50mm 1.8D and 1.8G lenses, and which one would be the better choice for my photography needs?

The main difference between the Nikon 50mm 1.8D and 1.8G lenses is the autofocus system. The 1.8D has a traditional autofocus motor, while the 1.8G has a newer silent wave motor for faster and quieter focusing. The 1.8G lens would be the better choice for most Photography needs due to its improved autofocus performance.