Well, I waited a year for those F800's to come to the good ol' USA. As a short, light, female, I thought it was a beemer I could ride.
I went out to the dealer to take a test ride the F800. It was a cold, blustery day in early May with a bit of rain. I took the F800 out and wasn't as impressed as I expected to be. Frankly, I was bummed
My husband kept telling me I should ride the R1200RT. "No," I said, "it's too big for me."
The salesman found a low seat to put on the R1200, and the rest is history
I liked the wind protection, relatively light weight, and smooth ride of the RT.
I bought the RT.
I thought the F800 was fun to ride, it felt good on the highway, but I just couldn't see myself touring on it. I found the riding position a bit too "sporty," and felt that it lacked sufficient wind protection for highway riding.
Perhaps this was the result of a rainy test ride (I did change out the stock windshield on the RT for a sport shield, because once it got hot, I was too protected and couldn't get a breeze).
You are the only one that knows what you want. Ride a few bikes and choose the one you like best.