Ele needs new life: S/F or S/D?
I would pick focus, because when you want to go scepter, you will most likely go for fresh air and fresh air isn’t very good without a lot of crit which means you will be probably running berserker and that means you need more defense
also you can check this topic where I got many explanations and good tips
https://forum-en.gw2archive.eu/forum/professions/elementalist/Fresh-air-ele-new-meta/first
S/D have a little more burst damage on his might rotation. It also easier and faster at pre might stacking. That’s why that’s a popular choice in some record run where the group stack might before the boss is ready.
S/F have more utilities and have a better might stacking rotation in fight. But the rotation have a daze which can screw up a Icebow burst if you do it wrong. It’s the most popular in most group since it’s more versatile.