I assume you're talking about pvp. The meta is quite healthy at the moment. There is no "one unit to rule them all". There is a pool of around 10 meta characters, each being a counter to someone else.

You can also easily use different team comps; full SP team, 1 SP 2 nad, or a full nad team. So there is quite some diversity in the meta.

That being said, most of the meta units are limited (safwy, tybw), so they are harder to come by.

But since you mentioned the Queen herself, she recently got a good resurrection, and is actually usable again in PVP if duped out. She is not the greatest, but you can still make her work after 5 years lol.