one of the green lines is the best one?
does not really matter!
All the suggested moves are
excellent. Inferior moves are never suggested, this is why
sometimes you see less than 4 suggestions. Just pick the one that
looks the most natural to you, and that fits your playing
If you really want to know:
Thicker = slightly better
More opaque = slightly better
thickness and opacity are saying the same thing.
focus too much on this.
All the suggested moves will win the game. Picking one is a
matter of playing style.