I was in the same boat we have an Isuzu rodeo (still) but when you factor in going out and bringing people like grandparents or relatives for extra help especially on day trips etc.
A van is more comfortable. Especially if you make the wife sit between the two kids in the back she'll change her tune soon enough.
Out of necessity we got a van anyways because the amount of shit the wife packs for the kids is like a Frikken weekend trip... Everytime