I'd have to say my favorite is Map 2. I like the idea of a ruined city, there's variety (small suburbs, big towers, park for cornucopia) and it's very well made. Map 1 started it all, and it's also very well made, but it's gotta go 3rd on my list because of the ridiculous amount of swimming required to get to some of the better chests. Map 3 is my least favorite; There's an extreme lack of chests, it's too big for 24 slot (the only servers I play on) and it's quite boring. Map 4 goes 2nd in my list, maybe it's because it's new and new things are fun, but I also like the design, the buildings, the air field, everything is well put together and it's small.