Which server will you choose, and why?  Choosing a server is probably the most important choice you will make when first entering the game.  This is because once you've chosen your servers you usually don't make the effort to move to a new one unless absolutely necessary.  The WAR Herald has some great information on server list and rulesets:

Servers, servers - get'ya servers! Below you will find the server names we anticipate being available at Launch. These will begin going live Sunday, September 14th with the Collector's Edition Head Start and will continue to roll out leading up to Launch on September 18th.

Players will be able to choose from four server types: Core, Open RvR, Roleplay, and a hybrid Roleplay/Open RvR ruleset. We will continue to open up servers supporting different server types as the need arises.

To view the complete list of rules for these servers, click here !  With the importance of choosing a server, we have a couple of polls and discussion items you in our forums .