I hate group work too. It invariably means you either have to do all the work or accept being dragged down. Or end up doing stuff other people were supposed to do because they don't come through.
In a workplace where you have a group who have different skills and someone in charge it works OK but children should not be expected to deal with this of thing.
The only good group experiences I have had were a couple of those "build a bridge with paper and paperclips" exercises.
Most of all I hate group stuff because every thing takes three times as long.
Yuck. Yuck. Yuck
