For me, the difference in color between E100G and Provia 100F is not important. However, there is a very big difference in physical quality.
Originally Posted by Hatchetman
E100G always, and I mean it, always came out perfectly flat. Which makes scanning VERY easy.
It is not the case with the Provia, though. After drying up, the film (120) is flat-ish, but it curls when heated by scanner lamp. That leads to weird reflection artefacts (at the end of strip), and loss of sharpness.
E100G example by JaZ99wro, on Flickr