I need the experts' advice on which of the above two lenses will I go for, considering that their price is close. I currently have Nikon D90 with 18-105 kits lens, I'm thinking extending my zoom reach for some long distance shots such as Triathlons or Birding. I've read the reviews of Tamron 70-200 f/2.8 and it seems to be a good/fast lense as the aperture is f/2.8 wide, and with macro capability, but i'm not sure if it can beat the Nikkor 70-300VR in terms of sharpness. If money is not an issue, I will of just buy Nikkor 70-200 f/2.8 as they said its sharper than the Tamron version.
Thanks in advance for any advices you can share.