Mobile Web jQuery And HTML5 Frameworks for Web Developers

Can someone concisely explain to me the benefits of a very javascript heavy way to build your mobile app like Sencha-touch over the more HTML5/CSS based way of jQuery Mobile and Bootstrap?

Also I'm confused why this article failed to mention two of these frameworks

I've been doing a lot of research over the past week on all the solutions out there because I'm building a phonegap based html5 app. My goal is to make it as native feeling as possible. The closest to that experience comes from Sencha Touch and Spine.js mobile. However, what I have found is that doing things from scratch is really the best way to get as close to native as possible.

Sencha touch is a bit heavy and you have to do things their way, and there's a bit of a learning curve (not to mention it doesn't mesh well with a lot of the javascript MVC-style frameworks out there). That said, it really is the most complete, best performant option out there.

This article was a fail in that it failed to mention sencha touch which is the no brainer choice in this space.

Jquery mobile comes second after this.

I feel like Bootstrap should be added to this list. The included CSS and Javascript is amazing and makes development incredibly easy.

useful collection ...