Good paint brands that won't break the bank

I have used Nason primer and base/clear, Dupont Chroma single stage & base/clear and PPG base/clear. As a novice painter (that took a course) I can't tell any difference in how these materials are to work with compared to each other.

FWIW, I painted my 68 Barracuda in May of 2000 with a mix of Dupont Chroma single stage (engine compartment, trunk and jams) and Base/Clear (everything else). Eight years and 50k miles latter the paint is still in excellent shape. I have had chips and other issues that has caused me to do some spot repairs and the paint color has not faded so there has been no match issues.