Gone through way too much gear over the years ... current setup is Pentax K5ii, 16-50 2.8 and 50-135 2.8. All weather sealed. Pentax weather sealing is first rate, and prices on the gear is quite good (for used lenses that is).
The K5ii is tiny in comparison to other full-featured APS-C cameras (camerasize.com) and only slightly bigger than the Olympus OM-D, which I previously had.
When Olympus gets more weather sealed lenses for the OM-D series, I'll probably move again as I really, really like the Olympus gear. After lugging Nikons and Canons around for 25+ years professionally, small and light is a pleasure (especially if it gets the job done).