I have a macbook pro retina with Parallels 8 and Windows 7. I'd like to start this thread to address how to get the best windows screen resolution and text size on the retina display (without considering a second monitor).
My most frequent application for windows on the mac is Quicken 2011. For this application, my experimentation leads me to using a screen resolution of 1440 x 900, and the easiest way for me to use this is to uncheck the "enable full resolution" option when configuring the virtual machine video settings.
The quality of display is sharper/better when I check "enable full resolution" and "optimize windows for full resolution" and then set the screen resolution for 1440 x 900. However, with these settings the screen resolution resets to 2880 x 1800 every time I restart the virtual machine or restart parallels. I find this a pain, because I don't want to have to reset resolution and optimize text size everytime I start windows.
So for now, I am using my machine at 1440 x 900 and unchecking "enable full resolution." So, I'd send a request to the Parallels Team to enable us to not reset the screen resolution upon reboot with the enable full resolution and optimize windows for full resolution options.
What are your optimal screen resolution and text size with Parallels 8, Windows, and a macbook pro retina?
As an aside, I am extremely pleased with how fast and seamless windows is running on this machine with parallels 8.