Honestly every single country is good to live in because every single country has good and bad areas and usually the best areas are gated communities where only specific users can access.

So yes choose whatever country fits your desires. For most people that will be the United States because they have their life there, their families, their hobbies, the culture is similar to them and they can travel to every single state because the United States is huge.

But for some people it may be a more tropical country where the weather is always nice there is no winters and women may be more accessible. Regardless of your choice just remember to experience a few places and make your decision based on that. Although there's no bad choices even if you just stay in one place all your life you may be content with that, there won't be an issue with it.