My favorite lens. Nikon AF-S 70-300 VR.

This is by far my favorite lens. When you need to get the shot and fast, this is the lens to have. Much lighter than the 70-200 f/2.8, you can comfortably hold this to your eye for a long time. The VR works great, I can get sharp images down to 1/15 of a second. Super fast focusing, I have never used a faster lens. Nice image quality, not the same as more expensive glass but excellent nonetheless.