Here is the thing.
If you are working alone, doing the entire thing with animations can take way too much time. Personally I find good writing paired with a few well done CGs can be better than animation. Plus you can always go through the story with CGs and slowly replace them with animation at a later point if there is interest for it.
Trying to do the entire thing with animations could take so much time that both you and fans might lose interest. You should consider what is the best option so that you do not avoid burn out. Better to actually get it out than to take much longer and get tired of it half way through the process.