What I carry depends on what I'm doing, where I'm going, and what I need. I am never without some image/movie capture tool. If you've ever wondered what the best camera in the world is, it's the one you have with you when a photo opportunity presents itself.
iPhone 6s. The built-in camera and a few other choice photography apps are the go-to solution when I am out and about and not specifically intent on shooting a particular subject. My favorite photo apps are ProCamera, and SnapSeed.
Canon EOS 6D. The full-frame image sensor helps to make short work of wide-angle landscapes, close-up nature photography, portraiture, product photography, and low-light subjects where the utmost quality and resolution are needed. One of the most affordable full-frame camera's available. (The EOS 6D was superseded by the EOS 6D Mark II in mid-2017, but many reviews favor the dynamic range of the original 6D). The 22 megapixel Images produced by the 6D can be easily cropped for producing compositions that maintain detail and subtle color variations unattainable with smaller sensor cameras.
Canon Powershot S100. I've always been a fan of Canon's S-series cameras. The 12 megapixel S100 is a pocketable, high quality workhorse, despite it's age. It's larger than average image sensor, moderate wide zoom and good fast lens make it a perfect carry-around camera when I want the extra control of real manual shooting in lower than ideal light.
Panasonic Lumix DMC-FZ300. Panasonic's Lumix FZ series long-zoom cameras are a great combination of features, versatility, lens and image quality. They have been favorites of birdwatchers and nature enthusiasts for years. The FZ300 produces great images and movies despite its small 1/2.3" image sensor. The 12 megapixel FZ300 has a Leica-designed, constant f/2.8 aperture 25-600mm lens, fully articulated LCD screen, weather sealing, 5-axis image stabilization, focus-peaking, focus-stacking, touch-screen, built-in wi-fi and 4K video. In bright sunlight and other well-lit situations, the technical image quality of the FZ-series cameras is just about unmatched.