I'm not so much interested in using them, as I'd just like to dissect and deconstruct what the state of the art is today.
P.S. I don't know why I hate Lua so much. I haven't really used it other than hacking WoW UI mods, but there is something about the syntax that makes it feel like fingernails on a chalkboard.
P.P.S It's wonderful that "modern 2d point-and-click" isn't an oxymoron anymore.
P.P.P.S Big bonus points if you've actually used the engine. I do know how to use Google.
P.P.P.P.S I want engines that are made for adventure games, not general purpose game engines.