Well, in general, you can get large zoom range, large sensor, and small size: pick any two.
You've already seen the Stylus 1s, and it's quite good. Canon has the G7x, but there's also the G1x which has a nearly DSLR sized sensor, but gives up zoom range and compactness, and then the G16 of course. Nikon fares a bit better but not much ... the P7800 is quite good and offers full DSLR controls and a 7.1x zoom (not as good as the Stylus 1s, but close), its big selling point is a fully articulated screen, but it's a Nikon DSLR menu, not a Canon. The Nikon J5 has a 1" sensor, focuses like a DSLR and shoots faster with continuous AF than almost anything else out there, has the option for interchangeable lenses and is pretty darn compact with the kit lens, plus the menus aren't very Nikon-like ... or Canon-like, either, they're kind of different to be honest. You really have to get your hands on one to see. There's also the Nikon V3, but it's pretty pricey.
Then there's the Sony RX10 II, and the Canon G3x. They're brand new and just shipping to the first deliveries no, but both have 1" sensors and a big zoom range.
Of those, the short list for me with those needs would be the Nikon P7800, Olympus Stylus 1s, Canon G3x, Sony RX10 II, and the Nikon 1 J5. I know that if I were invested in the Canon system that I'd probably get the Canon, but it's hard to go wrong with any of them, really.