So, how do you realize a nice workflow between Illustrator and After Effects so you don't have to struggle with unsharp images?
you start by reading this:
as for continuously rasterize/collapse transformation switch, read here:
as for unsharp images, read here:
if you want to use the switch and scale your graphics, the effects won't behave as you would expect and that's a limitation you have to consider. you can scale your graphics in Ae with the switch on, then precomp, then apply the effect (don't turn the switch on for the precomp) and the result will be as expected. for the unsharp images for your graphics - if your graphics is not pushing over its 100%, then it's probably have to do with it not aligned on the pixel grid. read here on what our community's Tribe Elder Rick Gerard has to say about it: Re: (PROBLEM) Blurry margin of shapes
here's a tip: this type of radial wipe, you might consider using the trim path operator on a shape stroke, and not radial wipe effect on a fill.
Well, to be blunt, this makes no sense. If all you want to do is wipe on a circle, then by all means simply use AE's tried and tested circle effect. And Roei already pointed out a million ways how to make it simpler and better with shape layers, too. As for stuff looking fuzzy from AI even when scaled up, it might be useful for you to read up on how AI handles DPI/ PPI and how to design your artwork to spec.