I am torn between the XT-3 and the XT-30.
I currently use an XE-2 and a pair of Nikon full frame cameras.
The Fuji will be my hiking, snowshoeing and travel camera. I have watched far too many videos and read a lot of reviews and comparisons. Unfortunately none of the local shops have either camera in stock. So a special order will be necessary. One comment that I keep seeing is that the XT-30 is good for people with smaller hands. People with larger hands complain about pressing the Q button unintentionally, not having a place for all their fingers etc. That said, I have had no complaints about the XE-2, but I always use the accessory grip. I would definitely get a grip for an XT-30.
In perspective, I wear a size 11 (EU) glove (XL I think in the US).
Thanks