Hey Lena,

I agree that the violinist has to have a great technique to play intuitively, but I think that even technique can be partly intuitive. Another word for intuitive is instinctive. Some people do things in a better way instinctively. Not to say that they can do it without instruction or work, but maybe not need to apply as much effort. A lot of technique is common sense if you analyze other players as well as yourself. With some students, I teach and demonstrate a certain technique only to have them repeat it much better than they had done previously whereas others need a lot of work and deprograming to achieve the same technique. 

As for what type of violin that player would need, I believe that everyone needs the best violin possible and having a more difficult instrument only causes the player to learn bad technique. In other words, if you have a violin that doesn't sound much, you might have to press too hard. You need an instrument that plays easily. As far as what an instrument displays, I am not sure about the differences. Some violins have more open sounds than others and with some you can hear the overtones better, but I always want the fiddle that is the most open and true. This being said, bright and powerful as apposed to only warm and dark.