Depends on your use and if it'll be your only bike. If it is, I'd probably say the Supreme as it'll take a front-mech and can be pedalled uphill if you're really that way inclined, then reward you with lots of smiles on the way down. The contact system pedals really well, just think of it as a beefy trail bike and a great all rounder.
That said, the Furious imo just blows it out the water as a DH and FR bike and is just SO much fun to ride. Plus I think despite the burly frame (1.5" head, 83mm BB, 150mm rear) it might actually be lighter. Definitely not so great for pedalling though.