Small Rock Pile vs Large Rock Outcropping.
I go with the small rock piles. 5 hits and I usually, not always, get 2-3 spider silk compared to the 20 hits with outcropping and getting maybe 2, more dire boar spawns then ever and glimmertroll spawn. Plus the old map is super rare on outcropping. As for the small rock pile, I did get an old map from one so I'm sticking with my little rocks.
The troll camp drops are terrible. I am on working on the upgrade to lvl 4 Haunted house, already have 3/4 witch costumes and 2/4 dire boar costumes made and 0/4 troll costumes.
I wish the old map drops were better so the adventure would be a help, but sadly they are not. Plus I feel I am so unlucky that the adventure probably wouldn't drop a toy club anyway. Last time I only got witch hat and a spider silk.