Let it (virtually) snow

Heavy snow outside and Lost Planet at number one in the charts - surely proof that more games should involve the white stuff? Yes, the campaign for more snow in games starts here, before probably ending sometime Friday evening. Think of classics like Amped 3, Horace goes Skiing, the snow level on Mario 64 (and every 3D platformer since) or even Winterspring in World of Warcraft - all made great by their snowy setting. Yes, ice and snow can be a lazy design inspiration - and ice can be particularly frustrating - but when used well they can add atmosphere and excitement. Or maybe I just don't see enough snow in real life. So, snowy games then - what has been your favourite?