Yes, the two desert islands with a bridge was great. If I remember right, the map name is Chasm. The other one is probably ambush_on_a_caravan, something like that.
There's one ATS map that works really well with lower server population. it's something like ATS_city_revolt or something like that. The map is one street filled with barricades, and there's a side path through an underground sewer. It's compact with a unique layout so it doesn't feel like another small village map from native. I wish there was an easy to navigate database of maps with screenshots for all of them, so players could vote on what they want.
It's very late into crpg's life to consider such a project, but we really do need a change of maps. There's too many on the current rotation that are meant for 30v30 or more and they are way too big. Some of the current maps are good, but it could use another pass by a developer or balancer or something.