Coming to think of it I just thought of a scheme even more "elaborated".
Board Game, is that what it's called?
Oh, finally someone wrote Board Game. Board Game maps are very, very complex to be made. They need careful tests, not too long and at the same time very clear text. It is a scheme that you can do whatever you want as a map maker. It is a scheme that makes players do glitches and very crazy stuff that other schemes would never do. Several schemes may born from Board Game tasks.
Drive for Weapons is very complicated too. It requires very careful testings, it uses sprites and several other things that must be taken into consideration. It took me a lot of time just to make the map prototype. It is being very complicated to sbs too. I like it because it is more easy to play than board game, you don't need to read so much if you don't want to. There is a story that is optional to read, though. I'm saying this not because I'm behind its confection only, it is because I really think it is a very funny scheme. I played on the prototype many times and I don't get bored playing it. All people I played with liked it. Only one person complained it is too long, what is true. I plan to make another map, but shorter.
About schemes played on maps that can be made only using WA scheme editor I think Plop Gum is very well thought. In my opinion it is a masterpiece scheme.
I also enjoy playing Neocombat, because it is well balanced too. The only thing I don't like so much of Neocombat is that the first turns you cannot attack so well, but it helps to balance the game.
Snooker took me months to balance it and make it better to play. Now with the update, I plan to add more features to it and also create a new variant. Flat Earth Apocalypse took me a lot of time testing the scheme to balance it and add more features.
Oinky's Blackout PX scheme was very, very complex too. Very, very well balanced. Unfortunately it is lost now I believe.
I also appreciate Trick Race and Tower Race maps. They are not so easy to be made. Tower Race is usually very creative and funny, sometimes very tense...
I like maps with cannons too.