Survival Games 2: The buildings are AMAZING! I love the map style and gameplay. Some people complain because there is almost no chests. You just need to explore and make chest routes. There is a lot of options for your chest rout in this map. That's why I like it.
Holiday Resort: One of my favorite maps! It has a lot of colors and is very fun and creative. Great gameplay as well. There is a decent amount of water, but it is very occasionally that you'll get in a water fight. This map is definitely a good one.
Valleyside University: A high-quality map. Contains a bunch of chests, which is easy for new players. I like the theme too. Best gameplay out of all the maps, because you have a lot of space to fight at. Survival Games 4 has that feature as well, but that is almost vanilla plains, while Valleyside University's fighting space is sport courts.