Jet, I've never ridden an Intense myself. I've got a K2 hardtail that I like alot, even though the Noleen Air fork is a little weird. The fork is very stiff laterally, but it feels a little primitive in it's action (Mag-21ish), and has a tendency to not hold air for more than a few days. But that bike replaced an older Zaskar that has alot of sentimental value, and was one of those "year-end" blowouts that i just couldn't walk away from (I was't really looking, but you know how that goes), and the Zaskar replaced a chromo GT hardtail from my high school days, so I'm partial to GT (I can't bring myself to get rid of the Zaskar, and it has become a singlespeed beater with road slicks, flat pedals and one of those "comfort seats", great for guests and friends). And while I've never owned a Kona, but I have spent some time on a buddie's Kona a few years back, and I really liked that. Great woods bike, and when the time comes, I'd look at them again.
I've also got a Specialized FSR, which is also a good bike, if not a little maintenance intensive. The rear bushings need replacing frequently, and after I replaced them the first time, the rear end just doesn't feel the same anymore. The bike also feels alot "bigger" when I ride it after spend time on the hardtail, like taller, which takes a little getting used to, but it can hammer through the rough stuff.