If your code base is still actively being enhanced or changed, then, yes, Angular is a better design than jQuery. jQuery locks you into the DOM structure, which makes changing the UI or adding features progressively more expensive as the app grows. Angular pretty much solves this problem by decoupling the UI from the code governing the functionality.

Edit: I can't help but to shameless plug my AngularJS-like frame work, TemplarJS. It does most of the same things but I designed it to have a much flatter learning curve. I wouldn't recommend it for production as it is still a work-in-progress but take a look at it if you get the time. https://github.com/ShamariFeaster/Templar

Examples: http://templar.bigfeastsoftware.com