Unlike the standardized Stormtroopers in the original movies, The Old Republic will let you customize your Trooper to near legendary status. For example, improving defensive tactics will let you become a Vanguard. Or, go on the offensive and be a Commando. Also, it has been revealed that you will be able to meet Tanno Vik, one of the more unique, explosive lovin’ characters in the Star Wars Universe. Plus, you can play as a Zabrak (Darth Maul like character) and level up as a Trooper. In addition, if you choose to be a Trooper, you will get access to the Rendili Hyperworks BT-7 Thunderclap spaceship. It is a heavily armored starship that will undoubtedly be originally amazing. Finally, Bioware has given us a trailer about the Trooper.
Remember this equation always, you will: Noob tube>everything else.