The league seems less competitive though as there are still weeks left and just these 3teams are making good wave in the league. Over the years it's still these three that have been the most talked about because of the feats they've attained. One would be so sure to bet on these teams and their ability to keep progressing in points in their league games. But since gambling is not 100% sure it would be advisable to beat of only the Portuguese teams that's got good record recenty
If we look closely, it's not that much less competitive than other European championships. Apart from England, which always has 5 or 6 candidates for the title, the winners in the other countries are almost always the same.
In Germany, Bayer has won for almost 10 years in a row - zero competition.
In Spain, only two teams win championships, Real and Barceloa - Atletico Matrid tries their luck there but fails.
In France, it's just PSG, and every now and then, another club appears there.
In Italy things are now a little more divided, perhaps there is greater competition at the moment, but about 5 years ago it was only Juventus.
Therefore, Portugal is not that different than other European championships.