7to25, what an amazing story. I'm not sure if my opinion should sway the argument, given your outcome, but here it is for what it's worth ?
We have a Peugeot 5008 and it gets a big five stars from us.
The three seats in the middle are a good size (the middle seat is a proper seat, unlike the Zafira we test drove) and the two at the back are fine for an adult. (I am 5' 6" and have travelled over 300 miles in the back seat. Not the most comfortable ride but absolutely fine. I don't think my husband would manage a long journey right at the back, but he has also done short trips.) I also regularly travel in the middle of the 'middle' row (DD gets travel sick and so often rides in the front, two DSs tend to fight on long journeys - so I get to sit in between them and amuse them) and that's very comfortable.
With three children (age 2, 6 and a very short 8) and a granny living locally when we bought the car, we wanted something that could take three proper stage 2/high-back booster car seats in the middle row, and still leave space for adults in the back. Combined with the Peugeot's fuel economy (we got the diesel version) oh, and the fact that Top Gear seemed to like it, the decision was relatively easy.
My only two complaints are a slight lack of headroom for me when I am driving. There again, as my husband likes to say, I do have a ridiculously upright driving posture. For me, the Touran won in this respect. Also, if you regularly need the 6th and 7th seats, then you will have a ridiculously small boot space so for holidays you would need a top-box. Having said that, the Peugeot does have rather dinky under-floor storage boxes which are brilliant for raincoats/wellies/lunches on a day-trip.
We also liked the Ford S-max but it was a bit more expensive.