Which countries are among the best quality tasting wine producers?

Which countries are among the best quality tasting wine producers?
The question is straightforward - Which countries do in fact produce the best quality and best tasting (red) wine?

I heard, that France belongs among the best wine producers.
I got the feeling, that Germany, Spain and Italy are also skilled in producing the best quality/best tasting wine.

I am asking this question because I never bought red wine before until today. I am basically a fan of mulled wine / glowing wine / Glühwein and I want to extend my culinary skills.
Which countries are among the best quality tasting wine producers?
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