Your question is very broad and subjective.
When you ask about best wines, that could mean different things to many people:
1. Best taste?
There is a huge difference in 95+ point rated wine to the average 90 point bottle.
2. Best varietal?
you can't compare a Cabernet to Pinot Noir.
3. Best style?
The American is very different from the french style.
4. Best White wines?
5. Best Red Wines?
It depends on the individual. I love cabernet sauvignon. I don't mind the specific brand.
I heard wines from Chile are good. Don't know what type.
I prefer a nice young Aussie red semi
also try shiraz.
Oh and Merlot also goes down well.