In reply to Francis.

They are different. F5 makes different music to LM, and they have other strong sides.
E.G No one in 5H can hold a tune like LM like Perrie. BUT
No one from LM has the voice of Lauren or Normani.
They don't have to keep up. No one has to be better. They just need to come up with great lyrcis, and mix their strong sides well