According to UEFA's Member Associations Country Coefficients List, here's the top 10 league of Europe:

Source: uefa.com

1- Spanish La Liga: Barcelona
In 17 games Barcelona collected 37 points.
Average points: 2.176
UCL: will play in Round of 16

2- English Premier League: Liverpool
In 20 games Liverpool collected 54 points. (Club record!)
Average points: 2.7
UCL: will play in Round of 16

3- Italian Serie A: Juventus
In 19 games Juventus collected 53 points. (Serie A record!)
Average points: 2.789
UCL: will play in Round of 16

4- German Bundesliga: Borussia Dortmund
In 17 games Borussia Dortmund collected 42 points.
Average points: 2.47
UCL: will play in Round of 16

5- France Ligue 1: Paris St. Germain
In 17 games PSG collected 47 points. (They're missing 2 games)
Average points: 2.765
UCL: will play in Round of 16

6- Russia Premier League: Zenit
In 17 games Zenit collected 34 points.
Average points: 2
UEL: will play in Round of 32

7- Portugal Super League: Porto
In 14 games Porto collected 36 points.
Average points: 2.571
UCL: will play in Round of 16

8- Beligum Pro League: Genk
In 21 games Genk collected 48 points.
Average points: 2.286
UEL: will play in Round of 32

9- Ukrain Premier Liga: Shakhtar Donetsk
In 19 games Shakhtar Donetsk collected 45 points.
Average points: 2.368
UEL: will play in Round of 32 (Eliminated from UCL groups as 3rd)

10- Turkish Super League: Başakşehir
In 17 games Başakşehir collected 35 points.
Average points: 2.059
Couldn't even make it to the UEL group stage.

Top 3 in leagues;
Juventus: avg. 2.789
PSG: avg. 2.765
Liverpool: avg. 2.7

Last 2 in these leagues;
Başakşehir: avg. 2.059
Zenit: avg. 2

Well, one of the worst seasons in Turkish Super League is being played and previous champions as listed:
2nd Trabzonspor
5th Galatasaray
7th Beşiktaş
11th Bursaspor
17th Fenerbahçe...

So what're your thoughts about these leagues?