latley i've been hearing fanboys claiming that sasuke is stronger than nagato which is a fat lie.... Now let me use simple math to prove you wrong...
Nagato = rinegan + uzumaki.
Sasuke = ems (uchiha)
Now rinegan = senju d.n.a + ems.
And senju d.n.a > ems (hashi proved that to us)
Which means rinegan>>> ems.
Now we all know that uzumaki clan members has nice stamina and great chakra level.. Which means nagato has better stamina than sasuke...
In the end if we are to use our common sense to calculate this maths i've written we will all know that nagato uzumaki > any sharingan user except rinegan madara and senju d.n.a/rinegan obito..