Just curious though, why are you looking for One trick Ponies vs. something that can give you a pretty good representation of all the stuff listed, like Spectrasonics Omnisphere?
I guess it's my attraction to products that are more or less "finished." IOW, they concentrate on one thing and do it as good as it can be done so you don't get a lot of compromises or "me too" attitude in it. I don't limit a company to just one product but if I want a Rhodes simulation, I want to buy it from someone who has tried to make the best Rhodes simulation that they can do and not just some Rhodes samples that fit into their sampler engine. Plus, I feel comfortable in the limitations that one trick ponies put on me. When I load a sample in Dimension, all the parameters and knobs and stuff just sit there and dare me to monkey with them. As a personal preference, I don't want to be distracted by that.
Heck, drawbars on a Hammond simulation are distracting enough.