Nintendo UK's Mario Kart 7 Community Race Nights have been going from strength to strength, and for this week's event the company is giving fans the chance to answer that age-old question: which is better, the mushroom or the banana?

By posting a comment on Nintendo UK's official Facebook page, you can influence the choice of power-up.

At the time of writing, the humble mushroom seems to be the clear winner, but there's still time for that to change.

Cast your vote and post a comment here to tell us what you picked!