Sasuke is a genius for a ninja. It has been stated in the manga. He learned chidori, mastered Lee's taijutsu, and increased his speed many times fold in a very short time. Sasuke learns things quickly. Naruto can use clones to learn things quickly.
He only was able to increase his speed from copying off Lee with his sharingon it's not like he put in the work from scratch and chidori came easy for him because of his affinity and from copying Lee's taijutsu that was part of his chidori trainning to get his speed to the level where he can use it in battle. Naruto learned a much harder technique that required accurate chakra control and chakra manipulation to learn and he did it even faster than Sasuke learned chidori and lee's taijutsu. Sasuke hasn't done anything that makes me think his a genius.
Naruto wasn't born with Kurama, and the Uzumaki's have strong life forces. Being good jins is just a plus to this. Kurama isn't Naruto's birthright or the same could be said for Karin and Nagato (Imagine a nine tailed beast wielding Nagato). Like I said, both characters have had their major powerups given to them.[/QUOTE]
Wasn't Naruto a baby when the kyubi was sealed inside of him? So he was basically born with it. You just said it again there clans kg allows them to carry them. Naruto works for all his power ups.