For those of you who use Brass, Woodwind, and Strings VSTi, could you share which product you use and some experience and thoughts about the VSTi?

I am looking for a VSTi that has lifelike breath and dynamics that are characteristic with the instrument with limited need to have to tweak the instrument. Many of these products make great claims on their web sites. But, I am hoping I can find a few of you that use these instruments that would help provide some insight to the rhetoric out there about them.

Thanks,
RickeG