How's the front fork on the F800GT though?
I think it's outstanding. The bike comes with a factory fork brace over the front mudguard, whereas I had to add one to the CBR to improve front suspension stability when cornering on rough pavement.
The engine is very vibey, but that's a parallel twin for you. It doesn't cause me any discomfort or ill effects like numb hands. To be honest I don't even think about it while riding. I just enjoy the bottom-end torque and the top-end power.
The steering has a dampener on it; I don't know if that was added later on as a running improvement or not. You do have to take care to adjust the rear suspension preload for your weight and cargo weight.
With the GT, it is often necessary to adapt the ergos to your particular body type. It was made for a person about 5'-10" (1,8m) tall and about 180 lbs. (82kg). If you are shorter or taller than that, you will likely want to change some things (bars up/back, pegs down, windshield up, etc.) and probably fit a more comfortable seat. I have put on all the necessary bits and the bike is now extremely comfortable for me.
For me, it's not an either/or between the CBR and the GT. They are both tools that I use for different purposes. They both have their strengths in their assigned missions and weaknesses once you go outside their proper application envelope.