I'm going on Vacation soon and will be bring my nikon D100 with me to Atlantis.
I can only bring one lens with me. Which on should I bring? 50mm, 19-35mm or 28-300mm lens. I'm leaning towards the sigma 28-300 with a UV filter because it's a well rounded lens with a wider focal point then the others. And just using the built in flash.
Please respond I am not sure which would be the best way to travel.

If it were me and I was limited to one lens, I'd probably stay home.
(...just kidding)

Your best bet to travel light and to record what you've seen is to take the 50 mm fixed focal length lens...(assuming it's a Nikkor).

This lens will be faster and sharper than the zooms and will document your experiences in the same perspective that your eyes and brain perceived them.