I agree with Paleface. I use my GPS (along with my maps) primarily, and the compass is a backup. I spent 7 years in the U.S. Army, and I've done night landnav courses, and even taught landnav courses to my soldiers.
When I need to go to a specific tree, wallow, or trail/crossing, and its 4am, I'm going to follow the waypoint in my GPS, not do pacecounts on an azimuth thats going to take a heck of lot more time.
Although I have seen issues with my GPS losing signal in thick timber, if its on and already acquired a handful of satellites, it tends to stay connected, versus trying to turn it on and have it acquire them in a sketchy area. Also, if you use lithium AA's instead of alkaline, they will last alot longer.