My wife prefers the Duncan Press chart for the same reasons as Taz, ishoot308 and Winni Boater, it's easier to read. Me, I don't really have a preference, I'll adjust to whatever's available to use.
Our first chart was a Duncan Press but after a couple years, I pushed for the Bizer since they were touting better accuracy (I had already dinged a prop!). However, the next time we update, we'll probably go back to the Duncan Press chart because of her preference; she's my navigator and 2nd set of eyes watching the water and boat traffic so this time, she'll get what she wants!
