As for me, I have always found the Premier League, La Liga, Ligue 1, and Serie A to be the most predictable. The reason why it always works out for me is that, in all these leagues I mentioned, I regularly watch most of their matches. So, when it comes to doing some analysis, I always find it much easier than with other leagues.

In fact, I would say someone can only find matches easier to predict if they consistently watch the games. Watching is what helps someone understand the kind of form certain teams are in. When trying to make predictions, it's not always about what people are saying it's about what you've seen for yourself.

On the other hand, the leagues I find most unpredictable are the ones I don't watch. Whenever I try to predict matches from those leagues, I always end up with poor results. Even if I manage to predict correctly, the outcome usually turns out badly in the end.