From what I am reading I think some folks are going too far "off-road"
In my opinion, the question should not be "Is the 800 better than the 1200?" (or viceversa...).
The question I will ask myself when the right time (read ..."money" ..
) comes is going to be :" For my needs of riding, is it better an F800GS or a 1200GS?".
Then I will draw the pro's and con's and check the sheet for the figures.
I have not ridden a 1200 yet (nor an 800GS) but I can already tell you the choice for road users will be better off with the boxer...no doubts !
If I wanted to buy a motorcycle for long trips on the tarmac, I would pick the 1200GS as my first choice over all the rest ("pure" roaders included).
But, to take a bike on off-road journeys (even not extreme ones) the figures are changing and something else comes into play.
It's in this field I think that the 800 "could" get some advantages over its "bigger brother"... meaning better handling, grip, easier to pick up
bla, bla.....
So, it all comes down on what you want to do with your bike, really!
And for these kind of bikes, WE know it's ALWAYS a compromise
You can't get the best motorcycle on the road and the best enduro off-road into just one bike. It is NOT POSSIBLE and you have to choose what best suits you....
For me the 1200 is too big for what I intend my bike to do and therefore I will be looking forward to March/April and see how the bikes handles.....
....and then I will be looking out for charity...
Cheers