Rogues are pretty good in RIFT because you can do a multitude of different things. Normally when you choose a rogue class you are somewhat pigeon holed into doing a very particular set of things, such as doing damage or remaining as a stealthy addition to your team. In this game, however, the Rogues are completely versatile that can use a multitude of ways in attacking and defending against objectives and/or helping the raid.
Leveling as a Rogue
Rogues are probably the fastest levelers in the game because of their killing speed, survivability, and dynamic methods of attacking. You can generally expect to power level when you choose the Rogue class, but you also need somewhat of prior knowledge in order to know where the quest objectives are and/or where you should go to complete each one. It also helps you if you know which quests to skip in advance, but this normally comes with experience.
Here's the best RIFT Rogue guide that helps you to level up, step-by-step
DPS Build - Solo Play
In the world of computer gaming, the acronym DPS stands for damage per second. This means that you need to have a high attack speed and attack power. This is why for this build; it's advisable to have the Blade Dancer as your main soul and the Bard and the Ranger as your second and third souls respectively. The ranger allows you to have a pet which can increase your DPS. This build is great for a solo game play. You won't have to rely on other classes for buffs and to get healed.
DPS Build - Team Play
If you really want to have a high DPS, then you should consider delegating the Assassin as your main soul. This build allows you to use poisonous weapons to your advantage. This means more chances of creating critical attacks that can bypass any strong shield or armor.
Tanker Build
Every party who is aiming to kill monsters in order to gain a level or two must have a tanker. The tanker is the one who has the most life and has the toughest defense. The tanker will be the one who is going to receive the damage from the monsters and other players. This is why it is best to Riftstalker as your main soul.