Look macho? :lol:
Unfortunately, there is still a stigma against MPV's and minivans in our local culture (just like in the States). Kesyo mukhang pang-pamilya, pang-driver, etc. Image is everything ika nga. hehehe.
To its credit the Fort can do some towing (if you order the optional uber expensive tow hitch). But you can also slap a tow hitch on a Grandis and tow a caravan if you wanted.
The Fortuner can climb curbs and can easily clear other road obstacles/debris. Just don't strayt too far off the beaten path because the 2.7G is a 4x2 and off-road driving is more about traction and control than ground clearance and macho looks.

The Grandis will be easier to back up onto a steep and slippery driveway because most of its weight is on the drive wheels. The Fortuner will do the same antics that my former Besta did (spin tires needlessly).
It's still a personal choice. Just weigh all the virtues and the vices.