heres the top 10 official best levels https://www.bopimo.com/forums/thread/2310?page=1

1. rise of turkey corp
2. hardware store
3. casa de galunga
4. desert bus
5. earth's heart

i have no bias whatsoever

dishonourable mention goes to blue parkour cause it SUCKS

1. Electric Space
Honestly one of my favorite levels of all time. I'd say its even the best weekly
2. Pee World
I wanted to have this one on the number 1 spot but eventually I settled for electric space. With that being said This level remains fantastic
3. Super Misaiah World
Pretty fun. The obstacles and the dialogue are very good
4. Gilded Glideway
It took me like 20 minutes to clear this level when it was a weekly but It was still really fun
5. Big-Big Mountain
I'll be honest I dont actually have a lot to say about this one Its just Fun and i think it looks Nice