#2 Nice and clean. I get the feeling that the waves tend to connect to the prawn looking a bit like very long whiskers rather than pure ocean waters. Not 100% sure about the typeface. If it helps inspire further - this logo is to be a master that encompasses other brands such as the one here
http://gallery.me.com/boxburg#100063/0-20Endeavour-20Prawns-20Master-20H264-2030&bgcolor=black