I just bought the F800GT after looking at some other bikes. The obvious choice to me was the F800GT vs the FJ9. The FJ9 lost in my comparison. The VFR800 would be another I'd look at, and the FZ6, but that puts two Yamaha bikes against each other.
The problem I find -- and I hope you can get past -- is the motorcycle reviewers can't get past the engine on the FJ9 to look at the rest of the bike objectively. I never got it past 35 mph before deciding this wasn't the bike for me. I live in Seattle in some of the worst commuting traffic made...not out on the open roads of California or Nevada with no real speedlimits. And as a commuter in stop-n-go traffic, I couldn't get past the snatchy throttle and small clutch friction zone on the FJ9. So if you pick the FJ9 as a competitor, I ask you to get past how you can do a wheelie in 3rd gear on the freeway. Evaluate the F800GT against other bikes that are near in horsepower and designed intent and look at it from the point of view of someone who rides it every day and didn't just come off an FZ1 on the track.
I got hooked on the F800GT after a demo ride to see if the reviewers were right. All I read about was how bad the vibrations were. As I pulled away from the dealership, I couldn't help but be amazed at how smooth the bike was. I've been riding since 1980 and that's the smoothest bike I have been on. Then I got on the freeway to see if I could find all this vibration you reviewers write about. Still nothing at 70 mph worth writing home about. My current bike was about the same and it was no big deal. So I started downshifting. 5th...nope. 4th...nope. 3rd...not really. 2nd...OMG, the vibration was enough to set my hands numb if I kept it up! But I would never beat any motorcycle like that. 65 mph in 2nd gear???!!! You've got to be kidding.
So I hope when you review the F800GT against other bikes in a "sport-touring" category, you ride them like real people do on the roads...not like the hooligans we despise. And I think you'll find there aren't a lot of bikes in this category. The other bike in my garage, a Honda NT700V, is about the only other sport-touring bike that isn't over 1000ccs and has a real fairing on it with a real windshield, not some postage stamp like bikes seem to have today.
Chris