Price, reliability, past experience, ride quality compared to comp vehicles, available features, kid friendly, outstanding safety features including front, side and knee airbags, antilock brakes, stability control, 5 star crash ratings. Bests the others.
Much more choice over the other brands. Lower price for a loaded vehicle. Many features that are not even available on the others at any price.
Very good brakes, and very high rated safety features, again, we felt it was the best of the lot.
Insurance costs are significantly lower than the other mini vans. Depreciation is better than Hyundai or Kia, but worse than Honda or Toyota. No problem for us though, we keep our vehicles for a while and take care of them.
Have owned or regularly driven three Grand Caravans in the past (1988, 2003 and 2006). No significant problems with any of them. They all were very reliable and trustworthy, especially the 2003 and 2006.