I wouldnt base you choice soley off the performance of others. Some people can drive / set up a car, and others cant. A lot of the cars are also cheated up pretty good. I can tell you I picked my car off the fact that it made stock 140hp, 150ft/lbs of torque, and was still a single cam car. Being single cam you can race it anywhere. Where alot of track still have limits on DOHC cars. Independent rear suspension and rear disc brakes are also a plus as well as being able to use a LSD differential. My favourite thing is the fact it's RWD. Tons of more fun that the old FWD probe I used to race. The only thing that may hold me back is weight.

A few good cars out there to build. Hope this helps