Gesshin 2000, Chosera 1000, Bester 1200 -- we have to guard against our male tendency to pick flyspecks out of pepper. That's why, in a class of very goods, I gravitate towards the cheapest.
Gesshin 2000 yes. Tried it, liked it a lot. Not as fast as the Bester 1200, at least not in my hands; and think the Bester is the better stone for the slot in most kits.
Technique probably has at least as much to do with it as the steel. That said, our techniques probably aren't that different. KC got me to use more speed and pressure, and Jon's (still) heavily influenced by KC as well.
For the little it's worth, I'm backsliding towards less speed (still comparatively fast, used to be medium) and pressure (from firm to moderate, used to be light), but don't know where the process will end. Broida's also doing a lot of evolution, probably more than me.
FWIW, both of those guys like to dissolve the burr on the stone, but take a more definite approach. That's got a lot do whether most of your knives are sharpened on one side or both. To me, deburring is the ultimate act of sharpening and polishing is something else.
Over the years, I've found that those things don't matter much as long as you're consistent with "tests," can interpret their results, and know how to act on them. A fresh-metal, true, non-wire, sharp edge is a fresh-metal, sharp, true, non-wire, sharp edge. Doesn't matter how you get there.
Jon says he has something to replace the SS 8000 in my kit. KC actually bought it new, and sold it to me when it was about half used up and he was bored. KC doesn't take great care of his stones, and with my use and maintenance has reached the stage where it's very iffy -- thin and crumbly (from KC's over-soaking). Jon's stone could be the Gesshin or something not up on the JKI page. I'll buy whatever it is, but don't get to the west side much anymore, so haven't picked it up yet.
I've now got four different types of sharpening kits; oil stone, water stone, EP (Chosera) and strop. Well, three and a half, allowing for the fact that my strop compounds start at 2u and go finer. Or, you could say 3-1/2 + 1/2 if you count the two different rod hones. Silly, neh?