For physical fitness if you're into that, the Nike band is really nice to have. The nylon bands are very durable and lightweight, but those are preference of with the color patterns that you have chosen. My preference lies with Nike band, as it works all around and is a great option for physical fitness.
I think it depends on your personal taste. I happen to like the new nylon bands a lot, and have all 5 of the striped ones. I also think it depends on the color of your watch and what you're wearing it with. Personal opinion, but I don't find myself wearing the sport bands often at all.
On a side note: Pollen has it's own watch face color, whereas Berry does not. The closest you can get is the red for the new sport band.