if you are worried about three wheelers round town, suggest you get one that has a lockable swivel wheel

rather than the maclaren three wheeler, also on the that be careful you don't over load it, or you might find the rear wheels bow outwards due to the way it folds (similar to a golf bag trolley).
due to the weight distribution towards the back and the 3 wheels you will find the turning even easier with a 3 wheeler than some 4 wheelers
But its all horses for courses, everyone has their personal tastes, needs and requirments, then it comes to colours and brand loyalties etc...
My favourite buggy at the moment has to be Buggaboo Frog, its just really