I guess it depends on what your going for.
I have House of Kolor Tangelo pearl metal flake on my 69.
But I have PPG Calypso Coral on my Dad's 66.
I think the major paint manufacturers are equal in quality. PPG, Dupont, etc.
Are you going to paint your own car or send it to a shop?
Autobodydepot.com has a paint selection chart for factory PPG colors as well as the House of Kolor paint product line.
House of Color, PPG, Dupont, and Sherwin Williams are the leaders in paint for the common man. I used Sherwin William Single stage sunfire paint on my 72. It worked out good, but it definitely needed tons of color sanding and polishing to make it jump out and shine. I personally am going to use a BC/CC combo for my 65 that is House of Color or Velspar (slightly cheaper version of HofK paint). What make the paint job jump out is al the prep work you do more than actually spraying the paint. If you're anal about the prep (cleanliness, block and guide coat sanding etc.) then the acutaly painting is easy an you'll get a high quality paint job. Search around the www.autobodystore.com 's forums and read tons of back posts. Also if it's your first time doing this sort of thing, spring for the Paintucation tapes, they are a definite lifesaver and give you a step by step visual instruction. They were one of the best investments that i made in the paint process.
Nice job Oboe! I'm getting near the end of my stripping session (should finish this weekend) and I can tell you this about painting yourself: you'd better do it 'cause you love it. If anyone thinks they are painting the car themselves because it's cheaper, forget it. Look carefully at Oboe's pics, see how far the car has to come apart to do a quality job? Mine is presently without glass, most of the interior and by next weekend the motor will come out. This is because I want it to be as detailed as possible with none of that nasty painted-trim look. I feel very fortunate to have a big (24x36) shop to work in and to store parts in while it's apart, because believe me, they stack up faster than you can imagine. Yesterday, I had to take my wife's '69 Corvette down to my parent's house to keep it from getting overspray once the priming and painting starts. They will be gone for two months, and I don't know what I'd do if they weren't. Just the thought of storing easily damaged glass, like the rear glass on a fastback is enough to scare me. Then there's the task of keeping everything organized so you can make it look like a car agian once the paint is done. But I don't spend all my time on the car because I hate it, doing this is a total stress relief for me. I was lucky enough to buy a one-owner car and as of yesterday hadn't found any "surprises" under the paint, aside from a couple dings that had been filled over with glazing putty prior to it's past paint job. I hope to have the car painted for around $2000, and that's counting tools and top-quality House of Kolor products. The next car I paint will be much cheaper due to already having the tools. Oh yes, beware of telling your friends that you're painting your car, since they always seem to want to have you do theirs so you can "practice".