Nautical Rope Armband or Anchor Tattoo?

I'm into nautical tattoos, and I already have the 8-point nautical star on my right arm. I want to get another on my left, but I'm not sure if I want the Turk's head knot arm band, or a Rope and Anchor. I'm really torn. Any advice about one way or the other? or about Armband tattoos in general? Thanks!