What's the difference between UTF-8 and UTF-8 without BOM?

Question

What\'s different between UTF-8 and UTF-8 without a BOM? Which is better?

Answer 1

UTF with a BOM is better if you use UTF-8 in HTML files and if you use Serbian Cyrillic, Serbian Latin, German, Hungarian or some exotic language on the same page.

That is my opinion (30 years of computing and IT industry).