The south entrance of the Grand Canyon out of Williams Az. seems to be the busiest. This is where you can hike down or take a Burro ride down, the other two entrances do not offer this. The west entrance out of Kingman Az. has the Skywalk. it is a little pricey but your ticket does include lunch. The Skywalk itself is a bit scary till you get use to it. But the north entrance out of Jacobe Lake Az. is the best I think. It is about 1000 feet higher than the south rim and has some awsome views. And yes, in the winter time with the canyon covered with snow, it is a wonderful site! Fudgie, which entrance did you use?
We came in from the east and stayed on the south rim. We did a helicopter ride also which was fun. We could see the lights on the north rim at night. We left towards Williams.