Map 1 or 2 with a blend of A and B fantasy types. 

Both maps offer plenty of variety and are much more interesting than the third. I'm not keen on Earth because... it's Earth, or Strangereal because it's an established part of a franchise.

I don't mind high fantasy here and there; I'm a Warhammer Fantasy fan, but I think a lower level is better suited to a RP medium. There are less complications in determining what can and can't be allowed, and players can have smoother expectations coming in. There also will, hopefully, be less conflict between players as to what's too outrageous or reality-breaking for the setting. 

That said, I'm all for creative freedom and like the idea of having different races and themes and such. So something reminiscent of Tolkien in that magic is both vague and largely intangible, with few individuals capable of it. I'm very much against black-and-white morality of high fantasy and D&D, though, and support the grey shades of low fantasy. 

One thing about settings in fantasy RPs that irks me is the lack of continuity between nations. IRL, the countries of western Medieval Europe were very similar, with minute cultural differences. You see common themes like feudalism, knightly orders, Latin and French being predominant languages, etc. But you also had differences: compare the feudal societies of England and France to the independent states of Italy, or the Holy Roman Empire and all its territories to pagan Eastern European lands. You have Christianity as the dominant religion, but that certainly didn't stop anyone from fighting each other. 
In other parts of the world during the same time period, you have vastly different cultures with their own aesthetics, languages, fighting styles, governments and so on. 
What you see a lot of in fantasy RPs is instead of grouping nations with similar heritages and aesthetics together, you end up with something crazy like an anthro-filled Not!Japan right next to Not!England, bordering a fascist demonspawn volcanoland: wildly different ideas that have nothing in common, yet somehow developed their culture in a vacuum, as if they were oblivious to their neighbors for millenia. 
That's not how reality works, and for a believable world, region-specific players need to collaborate together to form a cohesive feel in their parts of the world.