I recently cleaned out my Steam Library and uninstalled lots of games... good thing I only ditched Portal 2 and not Portal because whoa Emergence sure rocked! I had to refresh my thinking-with-portals skills a bit because I got utterly stuck at first but once my mind was back in Aperture mode, it was a pretty awesome map, certainly en par with stock maps! If I was eligible to vote, BoxFigs would get my vote.
Crystalline was visually breathtaking but I'm afraid my platformer skills are a wee bit rusty and I got frustrated enough to noclip past most of the puzzles - pretty cool item puzzle tho was the elevator supposed to despawn at the end?
As for my own map.... after having played the other entries, I feel like I proudly upgraded from drawing stick figures to creating sketches, only to find I was competing against Michelangelo. Still, I'm happy with how it turned out, in comparison to my older stuff, it was a nice step forward for me and it appears I did a good enough job staging the combat encounters.