Unit Phantom: These trucks are amazing. They are extremely light, and yet are still one of the strongest trucks on the market. The design is also extra cool. A super plus is the thin rubber shock pad that is attached to the bottom of the base.
Tensor: These trucks have the best responsiveness and control ever. A special interlinked bushing held the trucks so they keep stable, so that there are virtually no speed wobbles, and uncontrolled ollies are put to a stop. These trucks help ollies stay straight and controlled as they leave the ground. Also, the plastic nib on the base REALLY helps with slides. Also, another plus is that they are one of the lightest trucks ever. Only drawback for these trucks is that they don't have much grinding space. One more ingenious solution to a common skateboarding problem is that there are little spikes of the bottom of the base, so as the hardware is tightened, they dig into the deck, and stop hardware from rattling loose. They are usually worn to the kingpin after one day of grinding, but if you're into technical tricks, and slides, these trucks are absolutely perfect.
Destructo: These trucks are probably the most all around trucks. They have moderate weight, and have no special gimmicks, but they still perform well. These trucks are VERY strong and long wearing.
Independent: These trucks are probably the longest wearing trucks and they have moderate control, but they are some of the heaviest trucks on the market. If you are into grinding and are not really into flip tricks, then these trucks are perfect.
Grind King: these trucks are awesome. I am a big fan of these trucks. Not only are they lightweight, and are strong, but they also have a LOT of grind space. This makes for a good light truck that is good for technical tricks, but also good for grinding without sacrificing weight.