#2 was my absolute favorite from the entire day until I pulled it up in photoshop and noticed that the subject is too soft. I am so aggravated with myself for not catching that in camera and reshooting it.
As for the exposure problem you pointed out I agree based on the images as posted. To my eye the RAW files and even the JPEGs before being uploaded to the internet look about right.
I have a lot of years of experience in graphic design with photoshop, but really am just learning to use it for pp. Maybe there is something that I'm not doing correctly to optimize the image? I've never had an issue with any of my graphics uploading differently though. I'm just really not sure. Maybe it is an exposure problem that I need to take care of in camera. This is only my second photo shoot with a DSLR and I'm still learning how to read lighting conditions and find the right settings.