I'm not sure about the usefulness of this topic in its current form. Like, it is for sure useful in some way, but I wonder if the effort was worth it if is stays like this.
Especially since you mention new players as a audience. I currently see it as a tier list where PvP affine people can philosophize with each other about which set may be a tiny better than a other.
This may sound harsher than it is meant to be, I just want to sctrictly point that out because you also have nowhere mentioned that this topic is not finished/in work and I personally am worried about the future of this topic in the way it is right now.
I try to show why I see it this way.
Do you like my S tier Magic Guard Calm Mind set?
For a beginner, most of the set details are not clear. The explanations are missing. The sets are not usefull if not build in the right surroundings, you mention that. But how do I know the right build for my Pokémon? If this is something every newbie should answer for themself, then the topic is needless in begin with. They would (have to) come to conclusions on their own anyway.
Perhaps someone could argue the same way at the viability list, but I think that one is at least more 'general' and can be excused in this way.
I'd wish for set details with examples like in the Smogon dex. Maybe also a hint for the nature of the Pokémon, like "Bold prefered" or "Common natures: Bold"
In this way you know at least which exact sets are meant, and have a more fundemental base to think about what the weaknesses of this set/s may be and why you'd prefer move A over move B in the same All-out Attacker set.
----------------
I think the most common set in PRO is:
Diancie-Mega @ Diancite
Ability: Magic Bounce
- Protect
- Stealth Rock
- Diamond Storm
- Moonblast
and should be added.
I think you mean a different set with 'All out', do you?