Well I've owned a Savage 25 and a Savage SS 4.6, and a Revo 3.3. All great trucks! BUT the Cen is my favorite out of them, It bashes with a Savage easily, but a savage is better for HUGE air and it's easier to do backflips, the GST it's alot bigger then a savage, and it'll outrun a savage in the straight aways also and in my opinion it looks cooler. It has a 3 speed tranny with reverse, and tons of HP and torque. It's an all around great truck, heres a bash video i put together
http://www.youtube.com/watch?v=oBKfoO-1fEY