I've covered action (people) well in the 70-200 range. Animals on safari required an extension in to the 200-400 range. You can get closer to people, so get close and take better pictures. 
I think you should split your lenses into a zoom to cover wide angles (teens to 70 or 80) and another one for longer lengths. You'll be able to get faster lenses when you don't have to cover a huge range. More light makes a huge difference in quality. Some of the high coverage zooms are absolute shit at the extreme ends of their focal length. Some people make a career out of testing these lenses so search for those results.
You will be thinking very different thoughts shooting at 18 vs 300. It's not as big a compromise to have two as you might expect.
Another compromise is the 24-120 VR. In lower light conditions the VR works well, but it eats power, so watch out for that if it's you choice.
Avoid DX lenses. If you ever decide to get a film body they are useless. I know most people are not going to put out the cash for 2.8 or lower glass, but anything zoom starting at 4.5 is only worthy of a paperweight if you plan to shoot action. I see a bunch of dark, blurry photos in that future.
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