I always tell pirates that you shouldn't let the guilds come to you, you show go to the guilds.
It's really easy for somebody to say that you'll like their guild, but it's not as easy to determine when it's you, the actual member, making the decision. Instead of letting the guilds battle there for you, I would suggest skimming through the boards in the Guilds section to see which one would fit you. Read over the rules, what the guild is like - even, don't be afraid to ask the Guildmaster to hear more information about it, or even put in a pirate for a "test run."
In the end, it's all up to you in what guild fits you best. Good luck in your search
P.S. Darn you Savvy for posting before me! But yes, she is correct as well