I didn't see a topic like this yet. The question is simple: What map or maps do you just love to play? Specifically, what are your favorite maps in each of the following three categories: open maps, closed maps and water maps? (So for instance an answer could be open: Arabia, closed: Black Forest, water: Islands.) In the poll you can also fill in which of these three broad categories you prefer in general.
Both random map types and fixed maps are welcome, as well as official maps and stuff other fans made. It's up to you to decide in which category a map like say Highland or Mongolia falls. (Or to decide to have a fourth mixed category or anything you like.) You can list your preferences for any other specific situation as well (1v1, 3v3, free for all, regicide, nomads start, wonder wars, scenario, multiplayer, against AI, no rush, city building alone on a map, constructing your own scenarios etc).
I'd go first, but I'm way to undecided on the whole thing yet, switching all the time while I should probably just start learning one map type well to develop my way of playing. That's one of the reasons I'm interested in seeing other people's answers.