1-The most entertaining teams to watch in world football in your opinion?
2-The most entertaining tennis players to watch?
1-Barcelona, Athletic Bilbao, Bayern, Dortmund, Swansea, Shakhtar, etc...
2-Tsonga and Monfils for sure.
Who do you think are the best portugues players ever? I think it would be something like this maybe:
10-Really don't know....Quaresma is very talened but it's a headcase unfortunately
Scratch Couto, Baia and Quaresma
Some other members of the '66 team apart from Eusébio deserve a mention, like Coluna and Bento. Chalana (Euro 84 team) deserves a mention too. Overall, it's hard to rank, but your first 6 names are definitely strong candidates.