I voted for the Mazda 5. At least it adds a bit of 'style' amongst the boxes on wheels with curves at the edges such as the new zafira and the VW touran.
MY opinion:-
VW: + points: built quality, excellent diesel engines
mazda: + points: styling best on the list, reliability
vauxhall: + points: most intelligent seat system, availability, good deals
ford: + points: safe and sound
renault: + points: fairly spacious, good interior if not brilliant quality
peugeot: + points: styling ok, well equipped, diesels
VW: - points: boring styling, seating not so clever
mazda: - points: diesel might not be so good as others
vauxhall: - points: poor performance and equipment on base models, styling
ford: - points: looks like a fish from the front, body roll
renault: - points: petrols aren't great, normal scenic less capacious
peugeot: - points: potential for unreliability, less height.