You emailed a tiger direct rep? wow that's the strangest form of research. He probably told you it was better because its more expensive, ergo he makes more money. Read some benchmarks and reviews from some reputable places. We have a thread on this that beats it into the ground.
The Next-Gen Review Thread!
If you still go with Nvidia after all of that literature, and after the experts telling you otherwise then you truly are a fanboy. And in my opinion fanboys don't deserve the advice because you already know in your convoluted logic what you are going to buy anyways. If you wanted us to reinforce your biased and unsubstantiated views then i'm sorry to disappoint you.