Of all the MicroQuests listed here, I liked "Grail Quest" (MicroQuest #3) the most.
Some people dislike adventures that rely too heavily on fighting. They call these "hack and slash" adventures.
Of the MicroQuests, Grail Quest had the highest degree of non-combatant interaction.
Of course there was a fair share of fighting, but the quest required more thought, and more interaction with the non-player characters.
I also liked "Security Station" and the two "Treasure of the..." microquests as well. Actually, I liked them all and I wish there were more.