User blog comment:TheDoctor230/Arrowverse Season's Ranked/@comment-24152851-20171026034715

Arrow:

1. Arrow Season 2

2. Arrow Season 1

3. Arrow Season 5

4. Arrow Season 4

5. Arrow Season 3 (fight me)

The Flash:

1. The Flash Season 1

2. The Flash Season 2

3. The Flash Season 3

Legends of Tomorrow:

1. LoT Season 2

2. LoT Season 1

Overall:

1. The Flash Season 1

2. Arrow Season 2

3. Arrow Season 1

4. LoT Season 2

5. Arrow Season 5

6. The Flash Season 2

7. The Flash Season 3

8. LoT Season 1

9. Arrow Season 4

10. Arrow Season 3

I can't rank Supergirl yet since I haven't seen the entirety of the show.