How can anyone go wrong with a dark suit?
You can't. And for an interview, it's always a good choice. Remember to wear at least one thing that (as said above) pops so you'll be more memorable. So in this instance, I would suggest conservative suit and shirt but a tie with some color in it (tasteful)
And jesus god please make sure your suits are tailored, it can make even an ugly suit look better when it fits you right.
Edit: 3 piece suits are always hot.

Of course it helps when you're David Beckham.