[henk53]

Let's turn it around, what do these "other" ways have as advantage?

It's not sucking less, it's completely not sucking at all. JSF is very powerful and easy these days. I've dabbled in various other technologies, and I think they pretty much all sucked and where much more complicated.

I do like AngularJS 1 somewhat, but it's a client side technology which has its own set of disadvantages (remember why Twitter went back to serverside generation of "ready-to-render-html")