I've had my Garmin iQue 3600 for probably about three years now, so when my wife decided to buy a TomTom One XL, we were very quick to discover the things we liked and disliked about each.  Surprisingly the iQue beat the TomTom hands-down, despite the technology being several years older.

The biggest advantage of the iQue 3600 (and any Garmin product that uses CityNavigator software) over the TomTom XL is the vast collection of points of interest.  CityNavigator  comes with practically any business you could think of.  (Even our home-based web development company shows up!)  My wife's TomTom...