Is the word favoritos the same in Brazilian and European Portuguese?

Yes

The meaning, spelling, and grammar of "favoritos" are identical in both Brazilian and Continental Portuguese. The only difference lies in pronunciation. In Brazilian Portuguese, the unstressed vowels are generally more open and clearly articulated. In Continental Portuguese, unstressed vowels (like the "o" in favoritos) tend to be much more reduced, almost swallowed, resulting in a more "closed" or "clipped" sound.

Brazilian Portuguese Examples

1. Esses são os meus filmes favoritos. (These are my favorite movies.)
2. Eu sempre coloco as minhas músicas favoritas na playlist. (I always put my favorite songs on the playlist.)
3. Quais são os seus pratos favoritos no restaurante? (What are your favorite dishes at the restaurant?)
4. Eles são os meus jogadores favoritos do time. (They are my favorite players on the team.)
5. Livros de aventura são os meus favoritos. (Adventure books are my favorites.)

Portuguese (Portugal) Examples

1. Estes são os meus filmes favoritos. (These are my favorite movies.)
2. Pus as minhas músicas favoritas na lista. (I put my favorite songs on the list.)
3. Quais são os teus pratos favoritos neste restaurante? (What are your favorite dishes in this restaurant?)
4. Eles são os meus jogadores favoritos da equipa. (They are my favorite players on the team.)
5. Os meus livros favoritos são de aventura. (My favorite books are adventure books.)