legendary 1024 maps

Originally I thought E4M1, map01 & map07 all fit the requirement but they actually don't. So what 1024 maps have reached legendary status whether just amongst other 'official' 1024 levels or all Doom levels?

I dunno what a consensus on the best 1024 map would be, but personally I find Null Space Junior to be my all-time favorite 1024 map (and possibly one of my all-time favorite maps in general). I highly recommend it to anyone who enjoys 1024 style maps. It's in Congestion 1024 as a secret map as well.

What's a 1024 map?

A map where the playable area is entirely within a 1024x1024 map unit square.