IF (that's a big if) you only run one studded tyre, it should go in front. Front wipeouts are more difficult to recover than rear. It's far from ideal though. But you could always give it a shot and see if it works for you. If you later decide to buy another, the one you have will still be in good shape. Whatever you buy, make sure it has carbide studs. They'll last for years. I know Nokians have proper studs (I run a pair of W106s myself), and I believe Schwalbes are good too.