This is probably heresy, but when camping (backpacking, tent or camper) I have settled on and greatly enjoy Starbuck's Via instant. When I was doing more backpacking, I tried all sorts of stuff including Nescafe, Java Juice and assorted other mixes, but when Via came out I was hooked. When we started to do more car based camping, I started packing my French press so it would be just as good as at home other than pre-grinding the beans. However, I simply got tired of the hassle. My wife doesn't drink coffee, so I don't need more than I'll drink which a couple of packets of Via provide. I'm usually up first and get to enjoy my cup of coffee with just a short wait while everyone else is still working towards wakefulness. Clean up involves my washing out my mug.
Coffee is a very personal thing though, and I think you can only work it out through experimentation. I like mine rich and dark with no ups and no extras. Just coffee. As has been mentioned, tastebuds seem to expand their range in the backcountry. Things that would be simply palatable when served at your table at home, become rich and delicious when you've packed or driven a ways back to enjoy them. Freezer bag cooking when I'm backpacking falls into that category as does Via whenever I'm camping.