I’ve owned 2 Multistrada’s (original 2010 S model for 5 years, and a 2015 DVT S for 2 years) and am now on a 2018 GSA. Also test rode the XR when released, as it was a choice between that and the Multistrada at the time. For me, the XR was so fast, more so than the Multi - but I felt that I needed to ride it at high revs, (I was used to riding a twin tho) which meant breaking speed limits or it was gonna kill me ! It was also far too vibey for me, but understand they sorted that now...
The Multistrada is a lovely bike. Owned one for 7 years, and only had one big issue with my 2010 model after 5 years when it popped a piston ring. Apart from that, no problems. Ducati’s are much better sorted now in my opinion. The old reputation for dodgy electrics and reliability is something I’ve not experienced in nigh of 9 years of ownership. I still own a Ducati (Monster) and that too has not given me any issues.
After 2 Multistradas and 7 years, I fancied a change. Wanted a more ‘relaxed’ touring style, and after doing a level 1 off road skills course on a GS, had a new found respect for the Beemer, so went for the GSA. No regrets. Love it. Don’t do off-road on it, but as a do everything bike, I just love it. Sure, it doesn’t have quite the ‘off the line’ acceleration or punch of the Multi, but it ain’t no slouch either. Not having chain maintenance to mess about with, is also a great bonus !
Anyway, like most others have said, enjoy test riding them all. None of em are lemons, so go with yr gut feel and enjoy !!