I want to know your opinions on this. I have written a review that might help people out at my site pub.hardwareforums.com to decide which one is best. I hope this helps others out! I have reviewed Google Maps, Bing Maps, Mapquest, and Yahoo maps. I will be adding a couple more later. Agan... I hope I have helped anyone out!
Personally, I'm a fan of Google Maps, although to be fair I very rarely even try to use any of the others out there. Google Maps tends to do what I want in a quick and easy manner and I particularly like Street View to really get a feel of where I'm travelling to.