STX

 STX sticks are usually less money and have less quality.  They make sticks such as the Deuce, Fusion, and the AV8 which is a beginner stick.

DeBeer

 DeBeer makes very nice high quality sticks.  They make sticks such as the torque, which is pictured above.  The Triton and the Wizard are also made by DeBeer.

Brine

 Brine makes a lot of beginner sticks like the Blaze.  But they also make nice sticks such as the cyber.  Brine also makes a lot of equipment.  Pretty much everything mentioned on the equipment page. 

Warrior

 Warrior makes the very nice sticks.  They make sticks such as Evo Pro, Revo Pro, and the Finalizer.  Most pro players use warrior sticks because their good.  Most of the sticks mentioned are new for 2005.  Warrior has been making sticks since 1995.