Hey Lemmy! Let's see if we can get some community building going! What's your favorite .WAD and why do you like it?

I am new to DOOM and I'm only just starting to explore what's out there. Right now I've played through fava.wad and found it enjoyable, but I got lost quite often! My current favorite is Ancient Aliens, it is way too hard for me right now, but the first level is just fun, frantic, and the first sequence impressed me a ton. I'm so excited to explore more of what's out there.