AoE questions as Ele

So, I’m gearing up my shaman now that the rotation doesn’t consist of spamming literally 1 button ad infinitum.
Having said that, and after reading some guides, I have a question:
What is the optimal number of targets at which you start doing the AoE rotation?
The AoE rotation feels good at 4 or more targets but at 3 or less it just feels too slow and EQ doesn’t feel impactful enough.
Should I do the ST rotation at up to 3 targets?

It depends what talents you’re playing. Playing Echos you’re always gonna alternate between ES/EB and EQ even at 1 target. If you’re not playing Echos, then you use EQ at 2 targets if you’re talented into ES and at 4 targets if you’re talent into EB (assuming the mobs are gonna stay in your EQ for the duration)

At 2 or more targets, you’ll always use Chain Lightning since it’s better damage even though the Maelstrom generation is lower.