I tow with a Land Rover Discovery 3. It is the best car you will ever have to tow a caravan with, and it will also excel in all other areas.
It is more economical than my wifes Mini Cooper, and takes up less roadspace than many large saloons. It could carry 7 kids to school if I wanted it too, the alternative would be a journey by TWO normal cars. (I choose to make my kids walk).
I have far superior visibility than in a normal car.
Any car driven badly is dangerous. The answer to road safety is not to dictate what car to drive, but to properly train all drivers.
I have a family, and choose to transport them in the relative safety of a 4x4. I drive sensibly at all times, and am therefore less of a risk to other road users than the person who drives around at high speed in a low slung, less visble small car.
Draw your own conclusions, but please do not be put off buying a 4x4 by the inaccurate arguments put forward by a vocal minority who will not be happy until we are all living in the dark ages and hugging trees to relieve the boredom.