Sasuke is the greatest Uchiha ever!
And soon his power will dwarf Madara's, if it hasn't already....
Uchiha Sasuke is the second coming of Uchiha Madara. He is better than him in every way. They were both able to awaken the Mangekyou and the Eternal Mangekyou.
Madara has proven he is a genius with his Sharingan, in Taijutsu, in Katon.
Sasuke is beyond genius with his Sharingan! He was able to see through Itachi's Mangekyou Sharingan Genjutsu Tsukuyomi, with his regular Sharingan!! That is a feat in itself.
Sasuke is a master of Taijutsu just as much as Madara.
Sasuke created the first Raiton chakra Nature and Shape combination with his 5 meter long Chidori sword which can cut through anything.(The only equivalent being the Rasen Shuriken)
Sasuke tamed lightning! Kirin is a symbol of his absolute control over thunder!
Sasuke is a master of Katon. Not just regular Katon, but the greatest Katon known to the ninja world....Amaterasu! Literally, he owns Amaterasu! He controls and bends it to his will with his eyes. He even manipulates it with the weapons on his Susanoo, which by the way looks far more horrifying than Madara's, with that whole scary looking hawk face it has.
Sasuke has gone head to head with Uzumaki Naruto several times. He even tied with him at the Valley of The End. The only other person who overwhelmed Naruto was Pain, and Naruto wasn't even using his Jinchuuriki powers then, just Sage Mode. And mind you all, Pain was literally a God, if Naruto is the saviour of the world then Pain would have been the destroyer! No one has displayed a mastery over the Path's more than him.
Madara didn't even stay true to the Uchiha name, his battle with Hashirama was just a plot to steal his DNA. He is a disgrace to the Uchiha clan.
Nearly all the powers that Madara has demonstrated, BELONG TO HASHIRAMA! The only reason he even has them and the Rinnegan, is because Madara has Hashirama's face sticking out of his chest, thanks to Kabuto and Orochimaru!
In other words....Edo Madara is nothing but a successful lab experiment of Orochimaru. >_>
Sasuke is a true Uchiha! He is proud of his name and clan, it is the source of his strength, his pride and his love for his family and clan! He is far more noble than Madara will ever be. Sasuke even refused Itachi's eyes at first, not wanting to show his eyes things his brother would detest.
Acquiring a Rinnegan by the same methods that Madara has, would be considered nothing but shameful by Sasuke.
Sasuke relies solely on the power in his own blood and abilities! He is the true beacon of the Uchiha clan!
By feats, Sasuke surpasses Madara already. Those who refuse to see that....I could care less about you.
The only thing that makes people think otherwise, is Madara's 70 foot Susanoo....which can slash mountains...
When Sasuke stabilises his hawk and takes to the skies, unleashing Amaterasu projectiles at the ground. No one will say a word!
Madara doesn't deserve the name of Uchiha, he is, as Itachi said, "a bitter defeated loser, who doesn't deserve to be called the best".
Sasuke is the one who has taken Itachi's eyes, and is destined to be the greatest among the Uchiha clan!