I have lots, but the top of the list is probably Cairn - doubly so now that the Cairn 2e Kickstarter is out. It seems like the perfect mix of light mechanics and shenanigans.

Like many others, I haven't played because my group is in the middle of a multi-year D&D campaign. That, however, got put on a deadline, as our second child will be along later this year, so who knows what the future holds?