Can we considerate that Hokages are stronger than Nagato, Itachi and co?

[Percy Jackson]

When madara just arrived on obito's battle field. the manga says "the strongest has arrive"

When the hokages on there way to the battle field.. the manga says "the strongest soldiers are ready". (maybe it means they are the "strongest" group or army.)

 

[End of Days]

And yet Nagato lost to Itachi.

you must read a different manga