A couple of years ago I began to try different brands of chalk, ,anything to improve my game, right? Anyways, I ordered some of the NIR superprofessional, and I got some Blue Diamond, then I saw a blurb for "New" Balabushka, and when Predator Chalk came out I had to try that. Between all this I got a hold of some Russian Magic Chalk, a couple of cakes or Round Chalk from Asia (the shape was really neat, by the way), and some of the old Balabushka Chalk, and something called Super Tournament Chalk. All this while I continued to compare them to Masters - Flag and Pre-Flag, Silver Cup (many different colors), Brunswick Chalk, Triangle Chalk, Pioneer Chalk, and just to be fair some Sportcraft Chalk from Walmart. Although I had swore off it forever, I finally broke down a month or two ago and got some of the $30 Chalk - Both Formulas. Out of all that the conclusion I came to with money not being an issue and all things being even was that the Kamui 1.21 worked best for me. It was smooth and applied well and stayed on the tip with not much mess... on the balls, but it got all over my hands. The 0.98 just had a different feel to it. It played well, worked like chalk should (I guess) but seemed almost thick and gooey, maybe gummy. Don't get me wrong, it worked out really well, it just felt different, like it almost changed a medium tip to a soft tip, it was really kind of strange. Magic Chalk, well, I just didn't understand the hype. I really didn't see any difference between that and Masters. It was pretty good I guess, but nothing special - if chalk can be special. The Predator I liked but it always seemed "dusty" and messy, The Blue Diamond I liked and had no problem with it, the 1.21 just performed a little better IMO. The NIR SuperProfessional was very similar to the Predator and just as dusty, but smaller in size. The New Balabushka though was my favorite, it felt real close to and performed, to me, very much like the 1.21. Save for one (not the Sportcraft), all the rest were pretty much chalk and used correctly they did what chalk should do. The one to me though that was the highest value for the money was the Brunswick. If you were to place these different chalks on stair steps, the Kamui would be at the top a step or two above New Balabushka, Blue Diamond, NIR, and Predator, not quite a full step below, maybe on the same step I'd place the Brunswick, and all the rest at least a step or two below there. For as much as I like the 1.21 and the 0.98, the $30 price tag is just a little steep considering that I like a couple of the other chalks as well as I do. I'll certainly finish out the the cubes of Kamui that I have, but when they're done I'll be sticking to the Balabushka (new), and the Brunswick.
Of course, this is just my opinion. If you're in a different climate or even use a different tip or cue than me your opinion is likely to vary. This is just what works for me.