My suggestion is the following:
If you want a big, spacious, total VFM
family sedan go for the Ciaz with your eyes closed. Dont worry about the power and all that. We are not F1 drivers, both petrol and diesel have good engines with sufficent power for sensible driving.
If you do not require a boot, and would like a premium hatch, go for the baleno, ie if you have the patience to wait for many many months.