So I've gotten myself confused on yori and hodo. We had a lesson about it in class but something didn't fit right in my brain. Looking through the book to relearn it isn't helping.

Anyhow.

Lets say I say

つかさよりかがみほうがきれいです

or

つかさはかがみほどきれいです

yes I'm silly

このがくせいのえいごはあのせんせいのほどじょずじゃないですよ

or

このがくせいのえいごよりあのせんせいのほうがじょずじゃないですよ

Is my Japanese even correct? What are the meanings of what I wrote. How should I properly use yori and hodo? I'll learn this if it kills me. Much thanks for your time.