My custom blue Frogman has been getting the most wrist time lately:
It's a blue Triple Crown Frogman GW-200TC-2DR module with a spare band and GW-205K-2JR bezel. (http://mygshock.com/2008/02/19/my-cu...ogman-project/)
It's nice to have spare parts so you don't worry about beating it up.
I also recommend the Dawn Black and Master Blue. Those are both readily available and fun to wear.