55154635_ual_Globe____ArcGIS_Comparison__ArcGIS_KML_Layer_Functionality
[KML Feature] Geometry
KML supports drawing objects on the earth using 2D and 3D geometry. This includes points, lines, polygons, and multi-geometry. These can be extruded to fit the terrain surface and have associated styling data. ArcGIS fully supports KML geometry.
USGS InfoBank Virtual Globe -- ArcGIS Comparison
ArcGIS KML Layer Functionality