User Activity

I am wanting to upgrade my older Canon 5d mark ii camera and considering a 6d mark ii as an option.  I would especially like feedback from anyone who has made this upgrade. .Should I consider a 5d mark iii instead or just upgard to the newer 5d mark ...
I have purchased a Canon 5D Mark II off ebay.  When i take a picture and open the picture with Digital Photo Professional the camera list the previous owner as photograher and indicates it is copyrighted. How do i change this information. Thanks