Given your requirement for space with all rows up, the Toyota Innova HyCross makes the most sense for you. It is easily the roomiest of the three options on your shortlist and stands out for third row space and comfort. There is plenty of adjustability in the seats, too, allowing all passengers to find a good compromise.
Of the versions available, we’d suggest you consider the strong hybrid powertrain that delivers exceptional real-world fuel economy for a vehicle of this size. The powertrain is unexciting, but performance is good enough. Also worth bringing in is the fact that this Toyota car has bulletproof reliability, which is something important to you.