I like both programs.
To share on websites eg your own website or your customers websites or twitter etc. The works you will do with Cartoon Animator may look better and are easier to work with. Especially if you want to produce banners or work on a gif, CA is the perfect choice for this.
You can animate any picture.
It's also pretty cool if you want to make 2D cartoons.
3D is good if you want to make slightly more realistic images or more detailed animations.
You have already seen the work done with 3D. It depends on what you want.
For example, I made a cover study with 3D programs.
But I didn't like the intensity and I did it again with CA and it stopped perfectly.
Because it was not suitable for the area where I would put the picture.I decided to use whatever I needed at the time.
CA4 is easier to learn than iClone.
Even Photoshop alone can suffice as a utility.
There is more to learn for iClone and you may need to learn extra programs.
In terms of cost, you may have to spend much more with iClone.
So be prepared for some things before you start :)
For some, it may be a matter of need.
You may need to use Photoshop while doing a study.
But there is another job, you may need to use Adobe illustrator. These should be considered as programs that serve different purposes.
However, if you have to make a choice, of course, I recommend giving priority to 3D. I'm not giving up on both :)
----------------------------------------------------------------
https://www.youtube.com/yepkoo
https://dev.epicgames.com/community/profile/bxvo/Yepkoo#learning