The ear flap is the only one I've ever worn (it was only like twice)

Plain/normal. I'd like a few pom-pom ones though.

I don't really wear hats, just a hood. But I used to wear the plain/normal one only.

I used to wear tons of knit/crocheted ski hats. Back when I had my Bieberish haircut, I would wear one every single morning to get my hair shaped just right

Earflap with pom pom. I actually have one with a norwegian pattern

and also knitted beanies

I hate hats and normally wouldn't wear one but there was this Beyoncé beanie that I had to get. So to answer the OP- Plain, I guess.

None.

Knot beanies.