I would like to see questions about this sort of thing. But this one just seems too all over the place.
Would it be better to have several separate questions about different aspects of comparing strings? We have a few questions covering guage already. But I don't think we have anything comparing the component metals, and that's something I'd like to see. Wrappings seems rather obvious from the names (roundwound, groundwound, compressed roundwound, flatwound; and "tapewound" is already covered).