I just started using QGIS and I used Google Earth to export images as KML ground overlays. I then bring the KML into QGIS, then georeference the raster. I tried using de CRS 6370. However, the image imported into QGIS ends up all distorted. What can I do to make it look like in Google Earth?
I had this experience, and it stopped being a problem when I switched my Qgis projects over to use EPSG:3857 as the CRS.
KML files can only have by default one particular CRS which can't be changed. It is baked into the KML spec. Unless you use a compatible CRS in your Qgis project and layers you will run into problems like this with importing KML into Qgis.