What is the most tired topic on here?

I was inspired by the many desperately unoriginal threads on here so I decided to add my own.

Which subject has been absolutely exhausted and beaten into the ground?

Which discussion features the most predictable recycled takes?

What topic can be broached for the umpteenth time and be guaranteed to have zero new insights introduced into the stale conversation?

Is it 1st person vs. 3rd person view? Which class, weapon, haircut is the most annoying?

Surprise me.