Here's what I did (loved economics, got a 5 on both tests).
Took 1 semester of Macroeconomics.
After getting the basics of economics and a few of the important graphs under my belt, I studied PR
's AP microeconomics book.
Micro was C-A-K-E.
Micro seems more cut and dry. Macro was an awesome class - more fun. I think that is so because macro studies more interesting subjects for a regular student. General economic theories and the US economy are more exciting (IMO) than talking about a pizza factory for an example.
5 on both tests...