Well keep in mind that Genesis is a framework base that other type of character models can be created from using what they call injector technology. It’s more or less the same thing Weta uses to create an army based on a single framework solution. You then buy what you want just like you would from the Epic marketplace.
This for example
Is an injector for the Genesis 8 male so if you purchase head shapes, like phenoms, they will translate over to this injector as a unique character.
As part of the kit the bridge already comes with the must have resources that is installed into Unreal 4. What you get is the base Genesis framework assets, open sourced I might add, as well as pose files necessary to re-target to the Unreal 4 Epic rig and animation BP. Added as well is the base materials the support instancing so you land up with a correct application of the materials. You also get the base animation BP set up for use with JCM, joint controlled morphs, which corrects for joint deformations the skinning solution can’t handle.
To add to the fun Genesis options are added to the Project Settings that will allow you to target you import to your own custom made Genesis rig, as in keeping all of your sockets, and custom requirements, as well point to your own material base so if you make an awesome skin material with all the sub surface goodies it’s there.
So yeah there is a lot of advantage of G3 over CC3 as a “framework” base as the base is in place with out having to worry about additional export fees just because you want to export to a different platform. You have the open source license, tight integration with UE4, as well the ability to sell parts of your effort as a revenue stream to support you own development efforts.
That said the Daz to Unreal bridge is the first iteration of things to come as they yet but plan on support for Dforce, a cloth sim, as well as conversion of IRay materials to UE4 PBR and since we have been using Genesis from the beginning as a development tool since UE4.0 I would be hard pressed to recommend anything else as we needed a replacement for the Epic rig and noting comes close, I looked, as a “framework” option.
Daz Studio + Genesis = on serious kit before we even talk about other requirements like first person hands and 2D renderings.
As a perspective CC3 is like a Mac where the provider helps you along the way. Genesis is like Linux where the more you learn the more powerful it becomes.