you have excellent taste

You are right Christopher! There are different accents in both countries, I meant the standard one though. I will look for some videos with Southern American accents, want to hear them.

Thanks you for your answers

There are other English speaking countries. My favourites are Aussie, Kiwi and Irish accents (all their accents) 

There are different accents within the countries too. I would recommend that you look at each of the different ones. I don't want to form a bias opinion but I can say that a lot of people in the United States like British accents too but I myself like southeastern United States accents.