I rode the 1250 RT around Europe for 10 days (mostly 2 up) and loved it. We did Stelvio 3 times, and many passes each day and the RT turns quickly and easily, accelerates strong down low, and maybe popped a small wheelie by accident on a switchback.
But I didn't get the quick shifting strategy down at all. I did them all manually or not at all. Also we rarely went over 120 kph so mostly smooth back roads. Smooth suspension on both bikes, but the RT seemed smoother.
My 2013 FJR is faster, more fun above 5k , and just loves to pick a line and stick it! The RT feels lighter and shorter, the FJR feels planted and longer for the sweeps, not the quick little 10mph u turns. Get 2014/2015 if you want elec suspension. I prefer the 5 speed tranny.
I love the FJR in the US, but I can agree the RT might be more at home in the European mountains. Cost of ownership is tires and oil. I added a custom seat too. 55k miles later it's still like new! Try a FJR and point it straight and GO, you'll love it!