I've always sorta had a love-hate relationship with this. On one hand, I'm definitely very much attuned to the darkness, rather than the often too-bright daytime (particularly when driving!), so the longer night is good... but it comes with the unpleasant stupid of winter, and there's nothing I hate more than, well, cold things/places. Dairy products being the only exception.
It also has the advantage of there just not being many other people around... less traffic and not having to deal with lines or crowds in stores is nice.
Though, when ice and snow are present, none of this matters a bit, as I usually wont leave the house until it goes away.
Though, while the dark is good, the irritation that is winter will lead me into constant negative moods, regardless.