Canon 5D Mk3 vs Mk2 (Same Price Kit) - Which One is Better?

For the same amount of money, which setup is better: the Canon 5D Mark III with a 50mm f/1.8 or a Canon 5D Mark II with a 16-35mm f/ lens? Pricing reference: 5D Mark III: 5D Mark II: 50mm f/1.8 II: 16-35mm f/: