I'm claiming the Xbox my sister won from my purchase
Why? She was the one that won the console!
I don't think she deserves it
You shouldn't keep it to yourself. She was the reason why you got an xbox in the first place. You should share some play time with your sister.
She never takes out the trash.
That does not matter. You should share with your sister if she is the only reason that you have the xbox in the first place.