I have been involved in a project requiring a significant amount of GIS editing. As part of this process I have evaluated the most reliable and efficient tools for polygon editing. My basic requirements were: snapping to vertices during add/split Easy to move around/zoom in/out/pan while editing reliable Fortunately, I was able to assess the process across most GIS packages, and this how they fared: MapInfo - Editing is quite laborious, involving several steps for .....