As a Rogue, you should keep in mind that there are a few things you must know when you are choosing the race for you. Since most Rogues are rolled for Player vs. Player purposes, we highly recommend rolling a class has some nice abilities for Player vs. Player.
Let us take Human and Night Elves as example; they have some major advantages in Player vs. Player with their racial abilities and buffs. Night elves have higher agility and shadow meld ability while in combat or out; a move that works for AirRivals spi to stealth but does not allow you to move about. Humans have increased expertise with many of the weapons and the ability to remove all fear, stun, mind control, traps, slowing and the like. If you are planning on going Horde, Troll Rogues have increased critical strike chance in a few ranged weapons and higher agility as well.