Who told you that?!?!?!?!???!!!?? Thats my method and I prefer PPG Concept. Though as chopolds said, everyone will have their favorites even though they all work well. Just stick to the major brands, and you'll always get what you pay for.
no one mentioned it yet, i have used all the named ones with good results, but lately have started using Valspar, they are not new to paint but what my paint guy told was they are new to the auto industry, been makin paint for boats forever i was told, used some plain colors of theirs, very nice, covers better then most of the others and this black i recently used was very black, and covered up like nothing i`ve seen......we`ll see how it holds up, i guess if the make boat paint, should know how to make car paint.....