Let start the review
Stock Androud- On Moto G3 You Have Got Pure Android Lolipop 5.1.1 which is good for you pure / stock android is better than any customise android
Ram- Moto G3 Have 2gig of ram which is good for games lover you can play any game without any lag moto g3 optimization is very good even ram always 1.2/1.1 available
Storage- 16 gig of internal storage its enough for normal user you can expand the memory by using memory card
Display- display view angles very good its not a Full HD display Its 720 HD Display
Display quality quit good
Camera - camera also good in moto g3 photos very crisp and clear 13 MP rear camera and fornt 5 MP camera( Dual Tone LED light)
In camera you got many option like HDR mode Night Mode Panaroma
Battery- 2470mAh Battery its good for normal or average user
And the last not least it has - IPX7 certified - water resistant up to 1 meter and 30 minutes