I like the Rand-McNally, large print, spiral-bound edition. I purchased a 2010 last year and will used it again this year. I augment the R-M with Benchmark books for any destination state covered by Benchmark (most of the West) or by DeLorme Atlases where detail is needed and a Benchmark isn't available. I also carry a Garmin Nuvi for giggles at silly things it directs me to do sometimes, and for (kidding aside) advance notice of turns, exits coming up.
Just recently my RV'ing friend gave me a 2011 "EXIT NOW" book, published by the Good Sam Club, showing available goods and services at every interchange along the US Interstate system. Such is handy for drivers of large vehicles and for those who purchase diesel fuel, as we require room to maneuver and want to purchase our fuel from high-volume outlets since diesel does some funny things if it sits in underground storage tanks for a long time. Knowing that a TA or Flying J or other plaza is available at a particular exit is pretty handy.
Foy