This particular piece is mostly suited to the VSL Chamber Strings sound.
Any comparisons of sample libraries are nonsensical anyway because you could give a piece of music to 1000 users all using the same library and it would come out sounding different every time. What really counts is what you originally write yourself and then how you want to make it sound in your own way - not how it sounds the way others do it.
A sample library is NOT a real orchestra and one of the advantages forgotten about sample libraries is the choices it gives you regarding sound. Conversely, you could have the same piece of music played by many real orchestras and it would sound different every time.