I have used a Gatco basic set for years, when I replace it (soon) I plan to buy the diamond stone version. If knives are really dull I too start with a file to establish the basic bevel. Anyhow this works for me, although I have not done kitchen knives. Gatco has a hone for serrated blades as well.
I use a two sided diamond impregnated stone from Smiths. I cary a mini version in my back for touch ups, and the bigger one at home for kitchen and hunting knives.
A round steel hone merely straightens / re orients the existing wire or burr. If you want to sharpen said blade, first be sure to use a stone, then get rid of the burr with a leather strop.
Although it is ceramic, (Not your preference, but I recommend) Purchased this a couple of years back. 10 times better than my old Smith's ceramic crotch stick. Very easy to touch up blades which butchering or filleting fish.
The Ultimate consists of two standard 1/2 inch rods and two 3/8 inch rods that are made of a super-fine ceramic. Using this sharpener you can achieve a laser sharp blade in just a couple of minutes!
www.steamboatsupersharpeners.com
American made, Great product, and great customer service.