Overhaulin' is ok. Tuner Transformation is kinda funny but they also seem to know what they are doing more than Pimp My Ride.
All PMR does is find a junky Civic, make fun of how the owner has taken care of it, then take it and install all this bling crap, paint it a wierd color, and then the car owner sees it and is over excited because they aren't real car people.
If they Pimped My Ride(like I'd let em), I'd go in there and they'd show me the bling and I'd be like "uhm...ok...did you make it any faster?" They'd be like "uhhh...no" I'd say "Give me my stock body and interior parts back and we'll call it even".
Overhaulin' is funny because the owners are freaking out thinking that thier car was just jacked. I'm surprized they don't get super pissed off and call the cops and cause a big problem.
I really only watch these 3 shows when there's nothing else on or when I want a laugh.
Monster Garage is cool, but their useage of the term "Freebie" is a bit over exaggerated. I highly doubt that they get all of those parts for free. Some of thier episodes like every part that comes in is magically a freebie. "Frrrrreeeeebie. Zip, Zero, Nada. But we did give them advertizing and stuff...".