"Better than us" or "Better than we"?

I am going to be a little different and say that you are both correct. Correct grammatical usage might be "better than we", but certainly commonly accepted usage would be "better than us". I was not able to find any example in writing of "better than we" without "are" or some other verb after it. I was able to find many examples in writing of "better than us". To check my theory, try both in a word processing program with grammar check and see if it picks up any error.

You're friend's mom is correct. The subject is implied in the comparative sentence, therefor, you cannot use 'we', as that would be the subject pronoun. 'Us' is correct since it is the object pronoun. I hope this didn't mix you up any more but it is the truth.

Your friend's mom is right.

"Better than we" is incorrect. You can say "better than us," as in "She is better than us"—"us" is an object pronoun.

Or you can say "She is better than we are," where "we" is a subject pronoun...but you should only use a subject pronoun if it's followed by a verb.

Well when I say it, I think that "better than us" and "better than we are" are sound correct. "Better than we" sounds wrong grammatically.

i think your friends mom is right.

"better than us"

it sounds better.

(better than us ) is the correct form or you can say: they are better than we are