There are so many talents and way you can take a rogue in this game, and many ways you can make him good at PvP. It really depends on, that cliche phrase "whatever you want to be",. But from playing rogue in the beta I learned one thing about skills and talent. You really need to pick and choose. There isn't enough time in most battles to use all of your skills. And to become better faster you need to only use certain talent point to fit your rogue's ideal. (I.E damage, crits, subtetly, etc)
^^^^ that's a bunch of talking, but I think you get what I mean.