The advantages of having Grande, that I can think of, are:
1. Spacious from inside
2. Zero meter, with warranty.
3. Better looking as compared to Axio Hybrid (subjective).
4. Better resale than Axio Hybrid.
In case of Axio Hybrid:
1. Hybrid, hence better mileage.
2. JDM, hence better built quality/assembling.
3. More features: ECO mode, EV Mode, nanoe purifier, traction control, etc.
4. Better stability, road grip as compared to Grande.
I think you should go for Prius, if you want a Hybrid. Save some money, and get a loaded Prius.