I use a whetstone. But I also have a Chefs Choice 110 because it has an extra sharpener for knives that are so far gone, they'd take forever to do manually (i'm guessing it's < 200 grit equivalent)… That generally gets used when sharpening for friends, then finish things up on the whetstone.

All that said, I'd certainly get and EdgePro if I didn't already have the skills to manually do it (and to be fair, i've still occasionally considered getting one for the extra accuracy)