Getting a great case for your Moto G doesn't have to be a hard task, the main idea is that you just have to know what you are looking for and be aware of your own needs. If you know what case you need it will be very easy to select the best one from the selection that is available
Here are the best cases for Moto G
1. Ringke FUSION Crystal View Moto G 3rd Gen 2015 Case
2. COVRWARE Shock Absorbing Dual Layer Protective Armor Case
3. Premium Slim TPU Flexible Soft Case for Motorola Moto G G3
In general I'm really a bit cases fan and over the years I had many different cases on my smartphones. There are some very nice brands that often provides us with quality cases and I like checking them out first before I try to find new cases which I didn't try before.
When shopping for a new protective case or a screen protector I always ready the feedback of the people who already got this product and try to find someone who has commented and seems to have similar views and needs as I do.
The cases above have been selected by me and I believe that these are the best cases for the Moto G. I base this claim on my own experience of using many different protective cases on a lot of different devices, I also base it on the spec review of each case and also on the comments of the people who bought these cases.