Well, I tried many type of brushes... from China to Japan to GW to Vallejo.
Overall I found that Vallejo Kolinsky are very good coz it always retain its sharp point but its a bit hard to control the color flow in it. It tend to release a lot of color out and unable to suck it back. I don\'t find it suitable to paint clothes or armor.
Another type is Vallejo Round Synthetic are also quite good and price cheaper than Kolinsky. But the bad side of it is that the head will bend after long use. Somehow I use it to paint clothes and armor coz you can control the color flow easily and do feathering.
As for GW brushes, it is quite the same with Vallejo Synthetic. I would say the quality of it a in between Kolinsky and Synthetic.
I haven\'t try the GW master series brushes yet and I don\'t know its worth buying or not. Plus the price is very expensive too.