Good analytical comparison by Nido.
Which variant to go for depends on the individual consumer at the end of the day. We have members who are happy with their GLI, some with their 1.6 and others with 1.8, whether it's Grande or non-Grande version. As long as at the end of the day when you've picked up your car and drive it home (keep in-mind that the petrol is barely enough, so go directly to a petrol station and fill her up), you are happy/satisfied with your choice.
For me, I didn't go for Grande as I didn't care about the sunroof (being in Karachi they tend to rust and have issues after a year or two), nor the paddle shifters (not in Dubai or U.S. to be "racing around" on the streets - Karachi roads are generally bad), nor the faux leather seats, instead I opted for the 1.8 non-Grande option, and with the extra money left over, got my car glass coated, put 17" alloys with Yokohama Advan DB tires, good quality uv protectant tint, and other detailing goods, like 3M scotchguard, STP tire shine, Turtle Wax brake dust tire and rim cleaner to name a few.
I am happy, and with a little bit of homework and help from forum members, I am sure all of you thinking/contemplating on which variant to get will, at the end of the day, reach an informed decision, because, let's face it, Toyota sales persons are at times not as informed as we are going into the dealership