I prefer the Road ID. Actually, I still have mine on from this morning. I wear it whenever I ride. I usually ride to the gym every weekday morning, and wear the RI instead of packing my wallet. In an accident your wallet or phone may not end up anywhere near you.
My wife and I bike tour for extended periods, and have been using RI for 9 years.8
I have the following info on mine:
Full name, yr.of birth, city, state, country,home phone, wife,s first name and phone, critical medication, organ donor, allergy, blood type.
It all fits on the regular size wrist band.