Bizarriest 

When talking about someone who is really bizarre and you don't know anyone more bizarre than that.

- Dude, He's the bizarriest person I've ever known.

-yeah totally bizarro.

Bizarriest by Misty Partly Cloudy January 9, 2021

Bizarrier 

When someone is more bizarre than anyone else.

Me- That dude is so bizarre , there is literally no one bizarrier than him.

You-what a bizarro!

Bizarrier by Misty Partly Cloudy January 9, 2021