Verified answer

Neither.

http://validator.w3.org/check?verbose=1&uri=http%3...

http://validator.w3.org/check?verbose=1&uri=http%3...

Sister

Neither really. Annoying music, but it's good we can stop it. Yours has the repeating background image which is also annoying.

Your sis has bubbles or something coming from the mouse, which is annoying and distracting, and same goes for the butterflies. If I have to choose though I would yours is better when compared to your sister's.

Well i am a girl sooo ikind alike ure sis better but i like ures too

Yours

Yours is. Tell your sister to pay up.