As far as routine maintenance is concerned, I think, all are equal, as these all utilise similar sort of 660 cc engines, however, when it comes to market value and resale, i.e. "market ki gari", and comparatively easy availability of spare parts (again form junkyards / scrapyards), then I think Daihatsu Hijet and Suzki Every win.
I think, Suzuki Every and Nissan Clipper are same, just cross badging, but still, lots of difference in resale and market value.
In general, Pakistan is not a good market for Nissan vehicles.