Again, it all depends on the sound one is after. If one is after a "real" traditional orchestral and/or especially a chamber music sound, IMO, VSL is as good as, or better than, anything else that is out there. If one is after a "Hollywood" sound, a sound that remains "in vogue" that is arguably a different question.
The number of articulations VSL provides is vital to achieve realism. For all its excellent qualities, IMO, the lack of articulations in LASS is a critical weakness for my purposes, and it is therefore not a good choice for me. Does that mean LASS is a "bad" library? Obviously, no.
For me, as a strings player, the number of articulations in VSL comes the closest of any library to reproducing what I actually can do with a bow. Is it "perfect"? No. The way certain articulations end I find less than ideal. But, nevertheless, an intimacy of sound is possible in VSL that HS, etc., cannot produce - one is left awash in the "Hollywood" sound. OTOH, if one is after a strictly "Hollywood" sound HS could be - and has proven to be - of great use. The point is simply that one needs to use sounds that are designed for one's purpose.
It seems to me that often these types of threads degenerate into "If I like it = good, if I don't like it = bad". What is easy to forget is that the musical world extends far beyond one's own personal taste and needs.
For example, personally, I have no need or desire to use synth sounds. Does that mean I will start bashing, to cite one case, Omnisphere, as a useless library, because it doesn't do what I need? No.
Anyway, just my $.02.