There are limits to what you can do with JQuery on SVG, hence the existence of plugins such as this one : http://keith-wood.name/svg.html

Yes.

I think D3 and JQuery differ more with the dynamic data binding. In D3 you can bind a function to an DOM value.

jQuery's SVG support is limited. For example, it can't do class manipulation today (will be in 3.0 though).

Javascript can also do DOM nodes…