Spyglass Hill is often cited as an example of a "flawed routing" because the best holes are at the beginning of the course. I'm not really convinced there's a better option, however. Flipping the nines would put those holes in the middle of the course, but could make them seem disjointed from the rest of the property even more than the current setup. I also think the forest holes are of a high quality, however, so that helps.
Lancaster CC in Pennsylvania is a course where, to me, the front nine makes the course. The stretch from #3-7 is truly unique compared to the rest of the course, which is still good but more subtle. I believe that property was acquired later, however, so it goes to show how courses evolve over time. It still blends together very well, and the back nine is strong enough to hold up its end of the bargain.