Alright, I think I've played all the maps that were uploaded to the PMC servers, and I'll give my ratings and opinions on each of them ( I may not have listed all)
Rapturous Drift: The terraforming is really good, the gameplay is balanced, games aren't too quick but not too long as well, the Cornucopia reminds me of the cornucopia in Teweran 1, some buildings could have used a bit more detail (Boat, a few wooden houses, and farm) but it's overall a good map.
[7/10]
Totum Orbem: I hope I got the spelling right xD, I honestly dislike this map, it's like a downgraded version of SG3, the middle is unfair and the Terraforming in some places are really lacking, yes it gives you the Survival feel MCSG did back a long time ago, but the map itself doesn't look that good.
[5/10]
Excavation Zero: Best cornucopia I've ever seen is all I can say, it's a little too steep so there's a bigger risk in going to the middle chests as someone can easily get a Stone sword and go on a rampage, but the map is very well detailed, terraforming is good, not the best, but good. The map may have just a little bit too much trees, but other than that, it's a good looking map, and a fun one to play on.
[8/10]
Hell on Heaven: This is probably the worst map among all the ones chosen, it's basically an MCSG ruins v2, well that's what it reminds me of at least. The buildings in this map are really out of place and very bland, a giant portion of the map is just water, which everybody hates, and if you get a stone sword from corn, you basically have a very high chance of winning the game.
[3/10]
Quartz Laboratory: I like this map a lot, I like the quick and fast gameplay, yet having to be careful of the many traps in the map, it's very similar to Solar frost, which I like because Solar frost is a really good map. Some places do feel a little bit too cramped but it's still a really fun map.
[8/10]
Little Haven: VikkiAnn did a really good job with this map, it reminds me of Yellowstone, but it's better, quicker, and less laggy xD. The only problem with this map is the terraforming, it's not the best, but it's still pretty good terraforming, and that the gameplay can be a little bit stretched.
[7/10]
Untitled SG: I'm not sure if this map is serious or not.. I see this map on one of those public Sg servers where you click a sign and it teleports you to the map. This is a.. a bad map in my opinion, the structures look bland, there are not enough structures, and too many trees, a lot of water too. AND THE CORN IS TOO TIGHT.
[3/10]
Land of Ares: The gameplay is fun, especially since there's a bajillion chests at spawn, but the terraforming is lacking and the map is a little bit too big. I think it was made for 48 people because this map in a 24 person server is really hectic.
6/10
Colossal Caverns: Probably the best terraforming in an MCSG map I've seen, beautiful overhangs and waterfalls, and mountains. But it's a jungle map, a GIANT jungle map, so games on this map are going to take a while, it's got the survival feel and is also a sightseeing trip, how can this map not get in the top 3?
[9/10]