The courses I have the most fun on are the two I play regularly, mainly because of the guys I play with.
Aside from that, it has to be Pinehurst #2. It beats me up at least 4 out of 5 times I play it, but there is nothing I enjoy more in golf than that occasional good round on #2.
I respect courses that play fast and firm, are playable year-round, allow me to get around with one ball, invite run-up shots, and present a variety of options on how to recover from a missed green. Once again, #2 is the best example I know.
Jim Lewis