I use a lot of Rock Creek, PROOF, Spencer/MPA and Hawk Hill. Folks send me Bartlein, Kreiger and Mullerworks regularly and they make excellent barrels as well.
I have the benefit of having some very high end equipment for a little gunshop. I section barrels, check rifling forms on an optical comparator, check hardness of the material across the section of the barrel, pin gage checking bore sizes. All of this checking is to ensure quality that leaves my shop.
I use button rifled and cut rifled barrels from Rock Creek. Different projects, different products, different costs. It is always disclosed to the customer and they are always given choices.
The button rifled barrels that Dan Muller, Spencer and Rock Creek make are top end products. The price reflects it and that price is reflected in the product that I produce.
When I get someone that wants to know about button vs. cut rifled there is probably a book of information that I've learned in the last 7-10 years about the topic. The sad part is, the hit and miss product quality of some button rifle shops is why the internet is so easy to dismiss the idea of a button rifled match rifle barrel.
Think about this:
A rifle that has 2500rd of barrel life costs about $2000 worth of reloaded ammo alone to burn it up. The barrel costs $400 or $700 installed on your rifle.
Do you want $2700 worth of ammo/barrel to to through a barrel that is routinely capable of 1/4MOA repeatability or do you want to send $2400 through a barrel that MIGHT shoot 1/4MOA and it might shoot 1MOA... you don't know til you get it.
Just to find out if the barrel is good or bad it takes about 200rds plus your time. The difference in cost is rapidly diminishing.... ammo, reloading time, driving time to the range... all of these things cost money and while each of our time may be worth different levels the bottom line is that it still costs something. The guy who doesn't fret the cost of 200rds of rifle ammo might have time that is more valuable in raw dollars... The guy who has to worry over the cost of the 200 rounds may not be pulling in the same salary. It's a balancing act and it all equals out though.
End of the path, do you want to spend money on a barrel you KNOW is going to shoot and it comes with a warranty and support? Or do you want to roll the dice knowing that at some point it's coming up with a dud barrel and you're going to have a poor shooting rifle to show for it?
The barrels I use are heavily inspected by not only the folks making them but also by me. Call Rock Creek and ask how persnickety I get when it comes to spec'ing a barrel out for my shop shelves. This isn't an inexpensive sport and as with everything else in life you get what you pay for... cheap barrel blanks end up costing just as much money as the very top shelf ones; the only difference is at what point along the time-line the money is spent.
And all of this soap-boxing isn't even starting the discussion of what I've seen doing hardness testing and barrel life testing on some of the "cost conscious" options out on the market...
Sorry guys, bit of a rant. I'll go back to the lathe now