This has gotten me through Quarantine!

Hi Friends! I'm happy to have found a subreddit that encompasses my love for SMG. I have been sick for the past week and a half... (No Corona, just a REAL bad stomach bug...) and long story short, I have been completely quarantined to my house for the past 2 weeks, not being able to leave at all. I have played SMG every day for HOURS. It is simply my favorite game of all time. My question is: What is everyone's favorite levels? For enjoyment, for challenge, I want to know why! :) Hope all are well! :):)