I always unpack. I usually do it all just to keep it simple since I'm the one who packed and knows where everything is. For my hubby I just put his stuff on the bed so he can organize it as he wants...
I assign the bottom drawers to the kids, middle to me and top to hubby. I pack a few containers to put in the bathroom to sort the tolitries (we travel heavy with anything and everything we may need like vitamins, excedrin, first aid stuff, lotions, etc..). I have our unpacking down and can ususally have it all done easily with-in 30 mins.
For me this makes the rest of the trip soooo much easier. If it is just me for one night for work I'll live out of the suitcase but otherwise I have to unpack.