I'll start (knowing that it would evolve into something else):
A lot of time has passed, and my beliefs are reconsidered. I no longer see crossovers as a bad idea.
Instead, now I think they are the next step in car evolution, after the wagons and shooting brakes.
First, the interior shape. In a modern car, the roofline lays low, leaving quite little headroom, compared to the car's size. However, in a crossover, the roofline can be high, allowing for a comfortable interior.
Second, the suspension. Cars have stiff suspensions nowadays, because the scribblers have made us believe that is the best thing. It is not. You are more likely to make use of good damping than high lateral Gs. However, a crossover can (and usually does) get away with a soft suspension.
Third, a crossover is more practical. It combines the high roof of a wagon with a higher seating position (easier to get into), bigger windows (better visibility) and a larger tailgate (easier to load large stuff).
So, I no longer believe crossovers are a bad idea. In fact, they are the best thing nowadays.
PS: Please don't make posts that comprise only of stuff like "My favourite car is x" or "I like car x"!