Ask HN: Best JS MV* Framework with easy client side persistence?

I'm working on an offline-first HTML5/JS app. I want a good framework that supports client side persistence as smoothly as possible. The app will be wrapped with phonegap as well as a chrome packaged app, so I care about webkit first and foremost. I've looked at angularjs and backbone as well as ExtJS (via Sencha touch). Lightweight is good. Concise/simple syntax is good. Right now I'm just using jQuery for DOM manipulation with brian.io/lawnchair/ for persistence. jQuery is made to work everywhere, and lawnchair is a great, since it uses whatever adaptor and DB is supported by the system running the app.