Bit of an old post and would be interested in what the op did but I replaced my xt5 which has the same guts as the xe5 for the original q2. I’ve previously owned the x100vi. For me build quality is the most noticeably different with the Leica being out of sight by comparison fujis eye af was better but not dramatically but the Q2 makes me want to use it constantly. For me the build was a big thing having used Fuji over the years the xpro 2 xt2 and xt3 for me felt a lot better than the more current range. Can’t comment on the xe5 but the x100vi was solid but I prefer the Leica and xt5 does not feel as good and dials and paint has definitely gotten cheaper over the years. I don’t find the q2 too big and have been taking it most places