I am doing this right now and have not seen any reason to use anything but ionic 2. It can do browser, although limited to modern browsers. It can do PWA as the latest 2.2.0 has an example in their conference app. It has split views now which makes use of larger screens for tablet, desktop, etc. And of course it works as a hybrid app as it has from the beginning. I suggest using the deep linker to accommodate browsers and making sure you use route guards for security. Make good use of the grid and breakpoints for responsive design and you should be good to go.