well with the AWD you can't go wrong, if you live wheres there alot of snow
3.3 will outlast the 3.0 period, eventully your 3.0 is going to start costing you alot of money, while the 3.3 can be ignored for years & still stay alive & well, tho i would still do regular oil changes
also '95 is the first year they started using platinum plugs
now i don't have any personal experience with the AWD vans, but i don't remember hearing anything really wrong with them, just make sure you keep good care of that trans
-greg