thanks for share your nice thought & suggestionFor my money (literally, since I bought one!), the best travel and all-purpose camera is the Olympus OM-D E-M5 Mark III (review here).
It's incredibly light and discreet, it has the best in-body image stabilization around (second only to the professional E-M1X), the Micro Four Thirds mount comprises an amazing selection of lenses that are small, cheap and good, it shoots great 4K, has a fully articulating screen, has a 20MP sensor that's good for just about everything you'll want to shoot, and a 50MP pixel shift option that covers everything else… just an all-round great camera.
We get to play with every camera that comes out, here on DCW. So when two members of the team purchase the same camera, you can be sure that it's a good one!