in my opinion, no he isn't stronger because, Pain has more techniques than sasuke and the rinnegan is stronger then sasukes mangekyou sharingan..
nagato has the ability to resurrect people who recently died...so even if sasuke barely defeated paths of pain naraka path can resurrect all other paths (using the outer path)and even if naraka path is dead nagato himself will use the jutsu to bring him back (along with the rest of pains)..
This way sasuke should prove no match for nagato because the rinnegan is more of a legend and is rarer than mangekyou sharingan...but don't ask me about the eternal sharingan which sasuke will later posess...when we know more about EMS i will come to improve this answer...
note:As the story progresses sasuke will be more and more stronger..this is based on after the "pain's invasion arc".....
I think they are nearly the same BUT Sasuke has to be stronger considering Naruto beats Nagato and he doesn't think he will be strong enough to beat Sasuke and needs to take control of the kyuubi
if sauske battled nagato-pein sauske would win because of his mangeykyou sharingan also if naruto can beat nagato than sauske can beat nagato.
Sasuke is more stronger than Shikamura but he is smarter
Naruto is indeed stronger than sasuke
Rock Lee is stronger than Sasuke for a limited amount of time in the chuunin exams. After that, Sasuke is always much stronger.
sasuke is way stronger than kankuro
Kakashi clearly because Kakashi Is His master and he taught him The Chidori and The Sharingan and Orochimaru tought Sasuke some things but Kakashi is stronger than Orochimaru before he died that's why Kakashi IS stronger than Sasuke
Naruto is stronger then Sasuke because in episode 240 until 254 he will obtain kyubi mode that is stronger than Sasuke's susano
now one really knows. But its most likely that nagato is stronger
Danzo wants to kill sasuke but Sasuke is stronger than him
If you mean Sasuke With Mangekyo Then Kakuzu Is No match for him :P
Before when Sasuke was 12 no way but now he could